Originally Posted By: wallyuwl
What readily available oil has the most detergents in it? I'm talking Mobil, Valvoline, etc., not RP or similar. Does anyone have like a "top 3" for each of: conventional, syn blend, full syn?
M1, Penzoil Platinum, Motor Craft, Valvoline Syn Power & Maxlife
Would be my choices for "off the shelf" oils...