1984 300D turbo. I'm thinking of mixing a gallon of peanut oil in the tank when I fill up with #2 diesel fuel. Would a gallon of vegetable oil be a better choice?

I have burned 1,000s of gallons of WVO which was most likely peanut oil. I would go with the peanuts

The U. Of Indiana had a reported study on the net discussing the pro’s and con’s of different types of oil. I would look for that if it’s still discoverable

I don't know the answer to this. You might want to post this in the Alternative Fuels subforum, if you haven't already.

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Marshall Welch
Seattle, WA
1982 300D-T

It depends.

What is the reason you want to do this?

Lubricant? Fuel economy?

To see if it will work?

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

IIRC, I saw someone on youtube putting a gallon vegetable oil in the tank of an OM617 prior to filling up with #2 diesel. He said it cut down on the soot/black smoke problem considerably.

Any oil would increase lubrication of diesel. 1 or 2 gallons in a full tank wouldn't hurt. Your car can run on 100% veggie oil if you chose to. I wouldn't worry about it. The engine would run quieter, may be imagination, may be not.

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.