Quote:
Originally Posted by JohnnyBfromPeoria
I may have asked this of you before, if so please forgive me, but what are basing this on? Analysis?
John B.
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2 oil analysis, magnetic plug and filter sleeve, temperature (not the guage on the car), cutting open my filter, driving as a daily and on road course, and observation. its not a butt dyno if thats what your asking.