Quote:
Originally Posted by 356Guy
.....seems like dumping 12 oz of "mystery oil" (ok petroleum distillates and solvents) into an engine is risky business .....
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This is true. It is "risky". This is why I said earlier that it's never my FIRST effort.... it's usually (for me) kind of a "last ditch" effort.
However, in spite of the risks, I'd do this LONG before I'd use Wynn, or STP, or any of those other "oil additives". Frankly, I'd remove and tear-down a motor long before I'd use those other additives. (there's another recent thread about this)
FWIW: at various times over the years, I've used MMO, ATF and straight Diesel fuel, each with success. But not ALWAYS with success. And yes, ALWAYS follow-up with an oil change. You are not just changing the lubrication properties when you add this, you're also TRYING to break-up deposits in the oilways... so if you're successful, you want to get those OUT of the crankcase... not let them circulate around through the motor some more.