Marvel Mystery Oil
Any one ever add this to fuel in your diesel trucks? The only reason I ask is my 07 Duramax developed a light surging at idle. Researching the issue it is a fairly common problem especially with tr...
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Biodiesel definitely quieted down my 2005 Powerstroke. When I didn't fill with B5, I would add a cetane booster to the tank but it was never as quiet as with the biofuels.
