I have been running it for years in other vehicles. There are a lot of threads on this here. It used to be a sticky at the top of the Diesel Discussion page.

My current MB runs on only B20. I rarely put regular diesel in it. I have run up to B99 a few times. The last few times I ran B99 I could really hear a difference in the amount of noise coming from the engine and it shakes less. It had a little bit of a shake with the A/C on and if it was idling for long periods. After my last tank of B99 it runs much better (about 1 month ago). Now I just run B20 all the time. It is 40 to 50 cents cheaper per gallon if you pump it in the tank (down here). 80 cents to 1 dollar cheaper if you buy the off road stuff.

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AJ

1985 300D (SOLD)