Originally Posted By: fdcg27
Originally Posted By: PimTac
Originally Posted By: HKPolice
M1 will give you better cold start performance
How did you come to this conclusion?
He may have relied on those silly PQIA VOAs which show that M1 AFE offers significantly better W end numbers than PP. Lower NOACK as well.
Still, unless the OP needs to do -35C starts on winter mornings, which he won't in NH, the difference is probably more theoretical than real.
Either M1 AFE or EP in this grade is documented as having plenty of Grp IV in the basestock blends used while PP uses a GTL Grp III basestock, for whatever that's worth.
Using a VOA from any source to determine the quality of a oil is full of holes. Too many variables. Numbers can be compared but I really wonder if in fact there is much difference between a Noack of 11.1 and 10.6 for example? Or, the difference between a pour point of -38c and 42c? Sometimes we get too fixated on numbers.