what is this chevron supreme that says SL formulated. what is that? i just started to try this oil today and just noticed the SL. i used to use mobil drive clean, though i dont think it said SL rated on it.
can someone clairify please?
running 10w30 in my 1991 accord just after a auto rx treatment =).
can someone clairify please?
running 10w30 in my 1991 accord just after a auto rx treatment =).