Posted by David on Sunday, November 11, 2007 at 14:57:58 :
In Reply to: Re: Norm... posted by MoparNorm on Saturday, November 10, 2007 at 19:12:14 :
Marvel mystery oil does not meet federal requirement for ULSD. That appears to be why it is not recommended for 2007 and newer diesels.
I did not see any claim to octane boost in any search, only top end and fuel pump lubrication. Diesel fuel uses a Cetane index.
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