A quick question for the oil gurus my indie is doing a service next week
and he always uses Mobil 3000 5 - 40 rather than Mobil 1 0 - 40
what I want to understand why, I cant get my head round the fact that the 5 - 40 is thinner on start up than the 0 -40 Mobil 1 ,I thought as the engine aged the thicker oil would offer better protection on start up than the thinner one or is it me being thick :dont know:
and he always uses Mobil 3000 5 - 40 rather than Mobil 1 0 - 40
what I want to understand why, I cant get my head round the fact that the 5 - 40 is thinner on start up than the 0 -40 Mobil 1 ,I thought as the engine aged the thicker oil would offer better protection on start up than the thinner one or is it me being thick :dont know: