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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I had a valve sticking in my old jeep a few years ago,
an older fellow at napa told me to try 1 qt. of MMO: 1/2 in the fuel tank and 1/2 in the crankcase.
he said, if that does not loosen up the sticky valve, then pull the head.
within a minute of run time after adding the MMO the valve freed up and that was 3 years ago, still running good.
I add the MMO at every oil change.
that said: I would not add MMO to the fuel tank on my dodge diesel.
I have used diesel kleen and opti-lube, both keep the truck running great. opti-lube is a bit pricy as I have to order and pay shipping.
an older fellow at napa told me to try 1 qt. of MMO: 1/2 in the fuel tank and 1/2 in the crankcase.
he said, if that does not loosen up the sticky valve, then pull the head.
within a minute of run time after adding the MMO the valve freed up and that was 3 years ago, still running good.
I add the MMO at every oil change.
that said: I would not add MMO to the fuel tank on my dodge diesel.
I have used diesel kleen and opti-lube, both keep the truck running great. opti-lube is a bit pricy as I have to order and pay shipping.
