I LOVE that color. My 87 300D is Grey with Black leather.

As for biodiesel and WVO...

http://www.fryerpower.com/store/page11.html

(Shameless self promotion! PS I buy from Fastlane when ever I can. I sell stuff they don't carry.)

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.