Marvel Mystery Oil in the fuel?
#2
Wow, that took me back. My father used to use that stuff all the time. We're talking 25 some years back. I believe (IMO) this stuff is like seafoam. I can't remember of any problems all those years ago and I've used seafoam in many of my vehicles over the last couple years. Never on the hawk though. Not sure why. I guess maybe I'm worried about fouling a plug. They're a pain to change. When I use it, I use a vacuum line and eventually stall the engine w/ it, let it sit several minutes then fire it up. The smoke is pretty bad but it's supposed to blow out carbon deposits.
#3
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