i didn't say mobil drive clean is BAD. just cannot list as the same good as others like Castrol, Pennzoil or Chevron.the major reason is its weak additive package and base stock.
here're two virgin oil samples lab results taken from website:
Mobil Drive Clean 10/30 ppm
Copper 1
Iron 3
Chromium 0
Lead 1
Aluminum 2
Silicon 3
Tin 0
Additives
Molybdenum 1
Sodium 0
Magnesium 13
Zinc 1030
Potassium 1
Phosphorus 869
Calcium 1900
TBN 9
VIS @ 100c 12.2
and here's Walmart's supertech 5w30:
ppm
copper 0
ir
