Originally Posted By: Merkava_4
That protective film you got with the ACDelco blend is nonexistent with M1.
Originally Posted By: sprite1741
Mobil 1 made my former 2000 GM LS1 tick. Went back to conventional and never touched Mobil 1 since and never will. Lot of advertising hype with that stuff.
Ridiculous.
A 500 hp C7R can do 12 hours at Sebring with M1 but a Malibu can't make it to work in Minnesota with it? Any M1 will protect that car far better than any dino ACDelco available. I don't even use the stuff that often but because you heard something doesn't mean it wasn't FULLY protected and ,if pushed to the limits, is protected BETTER than whatever conventional you swear by if started unassisted with plugging in.
I asked in another thread, but OP I'm assuming you are in IF, MN. *Icebox of the lower 49
You are plugging in with an oil pan heater or block heater right?
Keep in mind, even if the oil is warmed more than ambient temp, the valvetrain can still be cold. Its just a side effect of the metals changing temp and warming up. It may sound louder at first but nothing is being hurt.