Mobil 1 0w-40 @40c = vis of 80
Mobil 1 5w-40 @40c = vis of 102
Rotella 5w-40 @40c - vis of 90
(all from the company websites)
Now my question is this: Would the much thicker Mobil 1 5w-40 be that much better at protection for a high revving engine (3.5 Isuzu and 3.0 Nissan) than the thinner 0w-40? Or would the Rotella being right in the middle be a better choice for these overhead caammed engines?
Mobil 1 5w-40 @40c = vis of 102
Rotella 5w-40 @40c - vis of 90
(all from the company websites)
Now my question is this: Would the much thicker Mobil 1 5w-40 be that much better at protection for a high revving engine (3.5 Isuzu and 3.0 Nissan) than the thinner 0w-40? Or would the Rotella being right in the middle be a better choice for these overhead caammed engines?