preformance air filter and oil change?

[1stToyota]

Originally Posted by bronsin

Have the oil analyzed. That would tell you one way or another how suitable/unsuitable it is and whether or not you want something like that in your new car. Maybe its OK. Maybe youll switch back to the stock filter when you see what the results are. Mobile One with the grit of antiquity in it...how good for your engine would that be?

Agreed. Grit probably isn't one of the friction modifiers that Mobil 1 wants to see in their additive package.