Quote:
Originally Posted by Masterbeatty
I used it on my 01' Altima with 190k on it and it ran much smoother. I had a lot of knocking and that went away for a few months but now its back. I dumped a bunch in the intake manifold. and the rest in the tank and it smoked like a sonuvabitch.
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Try running 91? And maybe run some Seafoam and turn off the engine? (In hopes that it sits on the pistons and cleans them better)