Vegetable oil for your volvo diesel - Top Gear - BBC
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- čas přidán 22. 03. 2007
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Want to run your car 'cheap as chips'? The Top Gear team find out how. A little vegetable oil and your volvo diesel will cost you as little as 26p a litre!
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Rudolf Diesel actually invented his diesel engine to run on vegetable oil (specifically peanut oil) in the first place
Turbochargers weren"t usable during Diesel"s lifetime, but he lived long enough to witness the concept being developed, specifically for the then decade old diesel engine
Diesel engines were initially designed to run on coal dust with pressurized air. The system never worked, so Diesel converted it into mineral oil and then discovered that it could run perfectly on vegetable oil. He never designed his engine to run on vegetable oil.
That is why he was kiled
Phantom Soldier Actually, General Motors built a prototype Buick that ran on coal dust in the 1980s. It sounded like a diesel, but on Motor Week, they said it often fouled out the spark plugs. I'm not sure exactly how it actually worked, but maybe it combined how diesel and petrol/gasoline engines work, like the new compression ignition gasoline engines in development now.
PhoticSneezeOne actually the first engine he made was meant to run on carbon powder
A volvo engine, runs with everything
Acctually the diesel engines in older volvos are VW made...
and now, VW diesel engines are rubbish.
SuperSilver301 they are good but dirty
Volvo is indestructable!
the old volvos where .. and the oil trick is also possible with nearly any old diesle engine .. i friend of mine has that in his old mercedes
I used vegetable oil bought from my local supermarket and diluted it 90% vegetable oil to 10% diesel. It worked like a dream on my old Ford Transit 190. The only consequence was that the van smelled like a fish & chip shop. I was actually stopped once by customs & excise who checked my fuel tank... (they were checking for agricultural red diesel)...they didn't bat an eye lid at my fuel mix. One other point that I like to make about this is that their is very little Sulphur Dioxide as exhaust.. only the 10% diesel used. My only warning would be that very modern diesel engines may not be a tolerant.
Why were they checking for red diesel?
@@bluefoxy6478 Some diesel are sold for agricultural purposes and are therefore exempt from paying fuel tax (In the U.K.). In order to stop everyone from using it in their vehicles for private use, the diesel that is sold for that purpose has a red colouring added to it. If the Inland revenue tax inspectors find a private vehicle with red diesel in it's fuel tank.... you are subject to a heavy fine.
How many miles did it run for? 😂
You bought veg oil in supermarket and it smelled like fish? They sell used oil?
@@igorpotocnik7231 The smell was similar to the smell of fried battered fish....(delicacy in my country). The oil purchased and added to fuel tank was fresh.... but once has been used for combustion in engine gives off a similar smell from a fish & chip shop.
Now thats what I call a lifehack
How can tax be 26p on something costing 3p?
That is insane!
zenoist2 Costs of road repairs, environmental aspects and so on
+rimwydas44 . Then tax electrics and tax the hybrids twice the rate as the standard fuel cars. Hummmm... You see why the petrol tax can't pay for everything forever.
Sure you're going to say, they help the environment. Well you didn't speak of the environment but of road repair cost.
They tax what they know. Taxes go up as electrics come onto the road as the traditional taxes will no longer pay the piper.
Sort of like the same government telling you not to smoke for decades, yet surviving off the tax. The whining starts as fewer smoke, thus the tax goes up to pay for the growth in fun civil things and more forms from fewer smokers.
Vogon math.
+rimwydas44. We'll you did actually speak of the environment too. As Jeremy would say, fair enough.
+zenoist2
socialism
+zenoist2 dont pay the tax
Purrs like a kitten... with diarrhoea
This comment made my day! LOL! *checks trousers* Uhh...oops!
3:34 For some reason the sound of the oil pouring in is surprisingly pleasant.
You're right, it sounds pleasantly gloopy
We run our old citroen on 50/50 veg oil to diesel. We have a mate who works in a fish and chip shop we get the oil for free
Lucky you!!
Viktor Woloszczuk, both are oils (and thus hydrophobic) so they will mix.
restaurants usually sell the oil back to a recycling company
Do you get a basket of chips when you pick up a batch of oil? Glad you are doing this, your experience helps everyone!
But then he went overboard and got carried away
A Volvo can run of anything. It can run on pure scandinavian sensible furry.
Mathias T.W.P sadly enough the engine is from a VW LT31
its a vw engine
Most older diesels can do this, and the Volvo is not that great with the VW engine and such, the W123 is the best for the job
Pretty sure you meant 'fury' mate. I don't want to ground up perverted cosplaying animorphs into my tank as that'd mean I'd have to associate with them.
A Detroit can run without oil so I could one of them running on toenail clippings
Legend has it he’s still driving that Volvo with that same vegetable oil
how can the tax be more than 800% of the cost of the fuel?
Because Britain.
oh i forgot about that
+10babiscar 10 baby scar? something you need to talk about?
Nah, it was my old high school username
Igor K
True but that's because the gov wants to discourage smoking. I imagine they would want to encourage biofuels.
For those wondering it's usually methonal that they add to the oil, it makes an ester which is no longer vegetable oil but it chemically more similar to conventional diesel to suit modern diesel engines better.
They heat it to drive out any moisture, then add a wee bit of -I forget- to make the oil something or another. It's been a long time. - But being behind someone on the road makes one crave french fries. lol
But ut's still 99.9% used fry oil.
They add a bit of sodium hydroxide as a catalyst as well as methonal. It's an esterfication reaction and it produces biodiesel as well as glycerol which sinks to the bottom of the chamber along with the sodium. It's still pretty much a vege oil though, you're right.
But it's actually more like 97%
Spencer Howard high school chemistry on point
Please do you think this would work same way in a diesel generator...
It's a great feeling to pour veg oil into my tank, I run almost 50/50 mix of diesel and vegoil (no White spirit - that was UK C&E insisting Top Gear made it more complicated!) I drive a Landrover Discovery and have been using vegoil for almost two years now....kerching! Of course we live in a warm area so don't have any problems with viscosity and waxing - and I just love pointing out to the anti 4x4 crowd that my ancient Landy has a better carbon footprint than a Fiat Uno!
the sound of that old Volvo brings back so many memories, we used to have a 740 and then a 240 Volvo diesel. loved those cars
Volvo POWER ;D
+Lolwutfordawin some folks in Germany refer to them as "Schwedenpanzer". I think even as a Non-German, you might get the point behind that, eventually :)
sinixer I'm actually german myself, and my dad did refer to them as tanks. We drive a V70 diesel now, which is much more comfortable and way faster but it doesn't have that old diesel sound anymore.
Lolwutfordawin dann weißt du ja genau, von was ich rede! die dinger sind einfach unkaputtbar, sei es nun die Karosserie an sich oder der Motor! Beides hält sich mindestens 350tkm bei regelmäßiger Wartung locker! Tolle Autos, doch einziger Negativpunkt ist die Knautschzone, aber irgendwoher kommt nun mal "Panzer" ;)
sinixer bei unserem alten 740er waren laut tacho über 400.000km drauf, an dem wurde aber gedreht bevor wir den gekauft hatten als dann der zylinderkopf gerissen ist, den 240 danach haben wir mit ~450 tausend wieder verkauft und der lief noch einwandfrei.
3:26 the indepedent guy bumps his head in silence.
That's all very well but how fast does it go round the track......?
chumpyland so we will hand it to our tame racing driver...
Some say, he visits restaurants only to steal the oil to put into his car.
All we know is, he's called the Stig!
maz199 nice try
maz199 lol
@@amer-du6qh hahaha good one ☺😃
Five and a quarter months.
Newer engines work at higher compression ratios and have very little tolerances. Also the veg oil wouldn't lubricate the engine as well as diesel would so you'ld be damaging the engine.
Old diesel engines, especially Mercedes ones were bomb proof so they can handle veg oil without any problem!
This is all my parents run their cars on, in the summer anyway. we have an early 2000's fiat punto diesel and a first gen Volvo v70, never tried adding kerosene though, just mix in a little diesel and they both run brilliantly
Diesel engines were designed to run on peanut oil (i.e. vegetable oil), so it's bound to work. They run better on veg. oil than on diesel fuel.
For newer diesels, you have to cook the vegetable oil up with sodium hydroxide & methanol and then separate the fuel from the aqueous layer and dry it with a drying agent before you can use it. The glycerol in the raw oil clogs the injectors, but in this process the fatty acids you want are separated from it and combined with the methanol.
I have a uncle that has a '83 300D and he adds 1 gallon of diesel for 49 gallons of used veggie oil and it runs perfectly (filters it with old t-shirts lol). Been doing it for 3 or 4 years now.
i tryed it out it realy worked and its actualy cheaper and i found a Restaurant that gives old oil to me for one cent a Liter
Update? And car model?
Philip Canete cars fucked
@@AfterHourProduction Only works on really old diesels
About 20 years ago had a workmate who bought a diesel van an was not afraid of the law, so used to run it off used fat from local chippy. Driving home behind him after a night shift was an experience. You could almost taste the fish they used the oil to cook.
its perfectly fine on older cars, newer cars have problems though. best to mix it with some diesel though.
One thing is incorrect, you do have to modify the engine a bit. But only if it has rubber fuel lines. Then you gotta change them out for some type of plastic I can't remember, because the Bio Diesel will eat away at the rubber hoses and seals over time
rudolf diesel designed his engine to use peanut oil. Its big oil that made everyone think they needed petroleum. Of course, they are doing it again by requiring massive emission standards that effectively kill the ability to run on plant based oils.. Of course the engine itself will run just fine, but the fuel system wont.
yes modern Hdi and high pressure pump diesel engines dont like vegetable as its a little too thick.
Thats a first - so now the increasing emissions regulations are actually an evil plot by Big Oil to kill off the tiny threat of the .0001% of drivers who use plant oil. Right. Whatever it is, if its bad, it must be Big Oil's fault. Of course. Wonder why they didn't consider the way their nefarious emissions regulations plot would backfire and encourage the rise of the hybrid and BEV, which are actually threatening to take a SIGNIFICANT market share away from petroleum, unlike used vegetable oil.
white spirit is used as a household paint thinners or to wash paint brushes out. it has different names depending which country you live in and can be bought in your local hardware store.
It's a D24 engine. they all knock like that when cold.
Additionally the fuel might have more ignition delay than diesel, which also causes a rough running.
mrspivvy is it the vw 6 cylnder derv in them or the 1.9 Renault derv both run on chip oil fine you can run a tilly lamp on it when fishing but you feel hungry with the smell from old burgers fat
thanks for the useful comments folks🖒
Yes it's the VW straight six
It doesn't. I've got a Volvo 940 with this Diesel engine, it runs fine on cooking oil- but not in cold weather when it's more reluctant to start
that reminded me of gas shortage in yugoslavia, people poured rakia (something similar to vodka) in their cars lol
Créme de la Créme hmm danas sipaju vitalovo zejtin ulje u dizela jer je cena 170din a ulje 90.
That sounds crazy.... And sooooo slavic hejeehehh
Can I use rakı in my car. That would be great nowadays considering how expensive gas is in Turkey.
Thats different. That is running a petrol engine off of alcohol, this is running a diesel off vegetable oil. Both cheap alternative fuels, but thats about as simiiar as they get. Not like wood-burning or charcoal burning cars in WW2 (or even today in some places)
Runs well on the citroen xantia TD (don't try hdi) also. If you use less than 30% veg oil you can just chuck it in the tank and not worry about white spirit. (You're just diluting it with diesel)
used to run my landrover of used oil from my mates chipshop, think the most amount of diesel i ever put in it was £20, £10 to get it home from where bought and then when i sold it due to rust and rot, not a knackerd engine, i put £10 in it then...but owned that for 5 years
I've got an old R-Reg Ford Fiesta Diesel; I watched this, and tried it myself...worked brilliantly...!
the idea is u have a dual tank and a valve system. the first and last 5 mins of each journey should be done with regular diesel to clean the engine out (redex is always good too). also u have to make sure your car has suitable injectors for it. look out for bosch injectors as they are the best ones to have as they'll push almost ANYTHING through it within reason. it's all actually pretty good. its especially good if u do long motorway drives. and performance is unnoticeable too :-)
Hii
Apparently the AA man is still out there on the track waiting for Jeremy to call him back in...
I work at a biofuel station in Oregon, we make and sell different blends of processed Biodiesel and people love it
oil has to be 70 degrees celcius(around 150 degrees F). here in estonia, it gets cold too. one old vw golf drives with vegetable oil. it has a little container under the bonnet where it gets warmed up.
At first i was looking for the punch line then i was looking for a practical joke but in the end it turned out to be a reality , just amazed man wow
thanks for uploading this!
I have a saying that agrees with what you have just wrote. "It isn't the gold miner that makes the money. It is the guy that sells the shovels."
Love the crackle of those old VAG 6pot diesels
Thats freaking awesome
You don't have to modify your engine, but I've heard that you might need to upgrade your fuel lines. Not sure though.
+GODOFGUITAR2112 depends if the lines can be affected by acid or solvents like white spirit
l had a 1985 MB 300TD estate that l put a 2nd fuel tank in for veg oil with a switch to go from diesel to oil- got much better power and performance on the used oil and did not have to add any additive, just clean, filtered oil. Was able to get free oil from local restaurants for 3yrs until they started to sell it to companies making bio-diesel, so l sold the car, the pump for collecting oil and 55gal barrels that stored the oil to a guy who owned a restaurant for more than l originally paid for the car.
@1910887 I used to run my dad's '82 Golf on 30% used oil to 70% diesel. Any more and she'd stutter. It did stink though but i loved the fact that i was paying a lot less for fuel. It is also more environmentally friendly. I now own a w124 ('94 turbo diesel). I got it because I knew you couldn't run modern common rail diesels on waste veg. oil. Our old Mercs will run on practically anything (I'm exaggerating here). Anyway, do make sure you filter out any impurities. Good luck.
you should probably change the fuel filter more often if you use frying oil. dieselinjectors dont come cheap
Well , you mentioned... INJECTORS...
Long live to carburators!
Weird. In chemistry class we made biodiesel too. But we all used methanol instead of the white spirit. We used a lot more too. Then we separated the layers and ta daaa here is a cleaner, better and more pure version of biodiesel
+mitchell van eldik what you made is biodiesel you seperated glycerine from vegetable oil. This is straight vegetable oil and let me tell you my friend using V.O. w/out removing glycerine WILL clog up your injectors.d
the European version of my car (700 series anyways, difference in headlights) I love my 86' 740 gle
In Alaska they simply use a heater to keep the oil lines from freezing... but once the engine/fuel system warms up its fairly easy.
Amazing thing about this video. It's from Top Gear's first episode ever!!!!!!
Thank you, I was trying to figure that out. I watched Seasons 2, 3, and now Im on episode 6 of Season 4, and Hammond says "last year we showed you how to run a car off of chip pan oil". I was like "No you didn't....what? I decided it must be the first season which is actiually 2 years prior. Although until now I thought they did one series per year, not two, so Ive learned something useful.
That's hilarious and ironic that the first episode ever shows the cleanest and cheapest fuel ever on a decades long motoring show.
A Volvo 740? Topgear just made a lot of northen Swedes happy.
äre ens DÄÄÄÄSSSJJJJJUUUFFFFFYYYYYYYYYYYYYRRRRRRRRR?????????!!!!!!!!!!!!!!
The problem is that oil becomes less liquid during winter months, that's a problem in the UK, but serious conversions do the the folowwing trick, they use a heat exchange, the hot water of the car's radiator heats up the vegiie oil pipes and tank,
you cab also add an extra an electric heater at the end of the supply line to enable start ups during freezing mornings
i too have run a standard 1.8 diesel Escort on new and used veg oil for 31,000 miles with no problem!
it"s excellent stuff!
Ahhh, mineral spirits here in the US must be what we call paint thinner. Thanks so much mk!
all indirect injection diesel are already Ready to burn every fuel. problem is there aren't anymore this type of engines
My diesel is an 06 plate & has been happy to run on a mix of 1 gallon veg oil to 9 gallon of diesel. No problems at all in 4 years.
Also the newer engines are common rail injected and I'm pretty sure most of the older engines had good old fashion injection pumps and injectors. I think that's why the newer ones have very little tolerance for dirty fuel.
why doesn't this catch on?
It did and it’s called biodiesel.
Jan Sten Adámek unfortunately that is not exactly true.90% of the biodiesel sold today is made from crops made especially for biodiesel (and not to be consumed by people & animals) and the rest is by reusing frying oil.
Jan Sten Adámek
Biodiesel is corn.
Research0digo
Biodiesel is any form of diesel-like fuel that is created through natural means. Vegetable oil, corn, sugar, and some biproducts from certain algae and bacteria are all various biodiesels.
Using old vegetable oil is probably the most economic method. You can go to many restaurants and ask for their used oil for free. In the US this can be handy, considering the lack of diesel cars and the many fast food joints around.
there are "Grease Car" kits you can buy for several diesel engines, old VW's, mercedes benz's, but i dont know if THAT kit requires any modification to the engine, or fuel delivery, there are videos on youtube about these kits, when i was in voc tech years ago i remember a gentleman that drove in with an old benz wagon with a grease car used vegetable oil conversion kit and thats where i discovered it. one thing i can tell you is your car will smell like fast food french fries every time you drive it.
I live in macc and i went to el rio's it was not bad, shame it closed, its now some sort of bar.
DarkKrusty macc as in Macclesfield?
aye, Macclesfield.
i have been using veggie oil in my 1996 pug 306 1.9 xltd. running great and has done for the last 36,000 miles, only thing is i change the filters every 1500 miles. used hydrolic oil from an old factory in my 1994 renault espace 2.1 td in the late 1990s, so who says its a new concept, its been round for over 80 years,
As the piston goes back down and then heads back up into the compression stroke, the Biodiesel is blowing right past the rings down into the crankcase and getting into the engine oil.
Bring BACK CLARKSON!
Won't happen. He shot a BBC employee in the face with a minigun.
They did just watch the grand tour
You need to pour it into a device (here in the US people commonly use old water heaters - (40 or 50 gallon) to heat the used fry oil to get all of the moisture out - then you use it..
I ran a small 4 cyl diesel on straight corn oil out of the bottle and it worked just fine, it just is a little too thick, hard to start but it works.
we run veg oil in our forklifts at the lumber mill and we have tons of it. just from 2 small in town restaurants.
are veggie oil powered cars harder to start from cold? i guess youre going to need a heater since veggie oil burns at 400c
+michael jagger Indeed, it's best to use standard diesel in the Winter but old Peugeots don't seem to care. Some even run on old engine oil...
+michael jagger it depends what the quality the oil will be , i know a person who drives veggie in summertimes, and he has tube running around the cooling system to heat it up, and thats in summer, after he drives by u can smell pancakes in the air, its true.
Tanel Murd they do say that if your waste veg oil came from a chip shop the exhaust fumes smell like a bag of chips. the emissions must be really low on bio diesels or pure wvo poweredengines. you can run a car entirely on veggie oil but it has to have a heater and an old engine for it to work. old mercs are the best for it
Tanel Murd yes exactly. new cars cant do it. old mercs can take anything
michael jagger its because of the onboard PC and too mutch electronics that now control the engine.
Wasn't vegetable oil actually made to be used in vehicles?
Some car makers have as option for the car to be biodiesel ready.
From what I read the main problem is the rubbers on the fueling system: vegetable oil is more powerful as a solvent.
But all diesel cars made from 1997 are ready (mandatorily) for a low mix of biodiesel so most of them are ready for the so-called B15, 85 % regular petroleum based fuel and 15 % vegy.
Some year ago, a car magazine did an endurance test on a vegetable oil fueled car. It didn't go well, turbo blew off after a couple of hundred kms and the fuel lines went corroded
I was about to say "i bet it will smell like mexican fuel" and then i remembered that about 80-90% of the petrol used in USA comes from Mexico.
Stay away from my peanut butter That is definitely not true
Citation needed
The U.S gets 80% of its oil domestically, and actually used even more in the past. So no, the states supply the majority of their own gas
all i need is , filtered used cooking oil + little bit of methanol and i have good diesel that won't damage the engine ?
funny, because heating oil is kerosene, and kerosene is diesel...
Again, kerosene IS NOT DIESEL For goodness sakes, get yourself educated!
Dimon just don't use it in a modern common rail diesel
Thanks for all your help! :)
i live in canada and some people still manage to do it, they just keep their cars in heated garages, but then you may think they're wasting their money on heating, but not if the garage is insulated really well... but it's still possible!
Volvo POWER
actually its VAG power since the engine in that 740 is a VAG diesel
why?
dunderhumor
its a vw engine
That was a 760
mineral spirits? its used in the UK for household paint thinning and washing paint brushes out. you can buy it in your local hardware store
That's correct, can be seen by a few things. Chrome on top of the bumpers, dampers holding the hood and ofc the unique for 760 -90, the taillights
Do they actually have Mexican restaurants in the UK?
Well noooo
Yes !! Some say they are run by Kurdish people !!
And some say, they're all asleep in a plastic chair with their head through a hole in a blanket, as a coat.
El Rio's doesn't exist anymore :(
+ThatCharlieLad What happened?
Mechanical Me I think they just ran out of money.
+ThatCharlieLad DUN
NUN
NUUN
Its a bar now called Mash guru, I wonder if you can run a Volvo on used alcohol?
+german sheperd you have to strain the bits, add the solvent and bleed the system first because the vegetable oil's viscosity is not gonna flow directly into the combustion chamber.
Well as a swede i have to say, that volvo can run on anything. Very reliable engine and can run for thousands of miles. Good ol' volvo
Over 4000 miles!
Diesel - the fuel of the future
No..... if you watched this you would understand that a diesel ENGINE is the engine of the future and VEGETABLE OIL is the fuel...
Don't care. Still works exactly like diesel, as demonstrated.
Fine thank you, I gave them an Olympic swimming pool of money to celebrate the recent long weekend. They're yet to un-wrap it.
Diesel is not the fuel of the future, it is the fuel of today. It's just that America is so far behind the civilised world.
iamaparanoidandroid1 That's a funny one... sure America sucks right now but saying it's "so far behind the civilized world" is a blatant lie
I'm confused, why don't we all just do this then?
The government reptil-- *gets killed*
+Ali Fraser Becase then fat poeple would begin acting inadequately and lick our exaust pipes.
+Ali Fraser, People do but it wouldn't be a good idea to use it on a newer Diesel engine car it might cause problems.
+Ali Fraser It works on a small scale, but if you shifted all of the cars in the UK to vegetable oil, once you grow the oil plants, there woul dbe no room left for food plants. Brazil tried something similar with disasterous results.
+Ali Fraser I read a small study on this and vegetable oil when burned creates 1.4 times more carbon dioxide than regular fuel.
So if we have 1 million cars on the road and they were all using veg oil then we have the pollution of 1.4 million cars. 1.4 doesn't seem like much but when you add up all the cars used per nation it gets prettty big.
Yes it would. that is one of the most popular cars for vegetable oil conversion/running
you can make it that xtra bit snappier by running the intake throug a T-tube, sucking up methanolfumes (put a sponge between the liquid and the intake)
that way the addition in the oil ain't needed..
passing the feeder-tube (make it a steel one) around the hot exhaust also helps for better coldstarting..
But I don't want a Volvo Diesel......
I try where ever I can to increase my carbon footprint.
yes but i think regular cooking oil with out the white spirt will not work very well in winter
im having an issue with the amout of solvent they put in it just doesnt seem like a few drops in a liter is going to make it thinner and i think if it gets really cold your not going anywhere
Apparently you can mix in regular diesel for easier cold starts, though I can't really confirm that.
i have run mine on used veg oil for 40,000 miles, mixed with 10% white spirit. lovely jubblie. smells and goes great.
most of the time its on 100% veg using a twin tank system to purge it at night.
theres ways to get around that. Run two tanks, one with vegie oil, othe other with deisel. You do this in order to start the engine and alow it to warm up on deisel (so it wont clog the injectors. The second tank has an onboard heating elliment.
I put 50% Veg Oil and 50% Diesel in My 1996 Mitsubishi Pajero and it works.
Ran my Ford Transit Van on this for ages, but I found that clean Vegatable oil worked better than used and I would put 10litres of Diesel in with it. Loads of people told me it would burn the valves and it didn't. When the Diesel engine was developed there was no such thing as Diesel it was just a heavey oil engine. They ran it on Peanut oil.
Kerosene works in a diesel engine as well (better than normal fuel, since it's a higher grade).
David James is known for being a bit unusual. Unlike many footballers, he has turned his back on an extensive car collection and converted his Chrysler 300C diesel estate to run on Rapeseed oil.
I am totally starting up my old diesel and run it on vegetable oil!
Actually, & almost unbelievably, Rudolph Diesel's original compression ignition engine, of 1893 I believe, - ran on powdered coal dust blasted into the cylinder by compressed air! It wasn't until many years later that a high pressure fuel injection system was developed. A diesel, or compression ignition engine, can really run on almost anything that will burn, the limiting factor is the lubrication of the injection pump & injectors.
i have the exact same volvo 740 gle, even the year and color are the same!
An Old Mercedes 300D will run on used vegetable oil without additives only thing is you will be replacing the fuel filters quite a bit.
Anyone else notice that the Volvo in the film looks just like the one that Jeremy used in a different challenge where James had an Audi and Richard had a Rover. At the end they had to crash into wall.