Who runs Marvel Mystery oil?
www.opti-lube.com It depends on if you get the summer or the XPD formula. XPD is about 40.00 per gallon, but works wonders. Well worth it!
I use 1 gal. of bio diesel to a tank. Dodge says 5% is ok. It doesn't recommend any additives. In the winter I mix the gal. of bio with a gal of #1 kerosene because bio does not mix well below 50 degrees f. Don't want to have any warrantee issues.
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Hummin Cummins
General Diesel Discussion
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Jul 5, 2003 09:55 AM






