Originally Posted By: djlinux64
The issue I have with Mobil 1 is that my father had a 2001 Mercury Sable that was gently driven for 165,000 miles on Mobil 1 5w-30 with a 3000 mile OCI and then after that the engine started knocking and smoking!? [censored]? Also, most OCI of Mobil 1 have completely unexplainable elevated iron levels. Oil does not come with iron. Also, Mobil 1 changed their formulation after they lost the synthetic name lawsuit with Castrol and have cheapened their oil to hydrocracked Group III [censored] ever since 1997. Don't use Mobil 1. It is not what it used to be.
My sons Ranger has 333,000 miles on M1 10-30, 10-13,000 mile OCIs. A friend has a 2000 Taurus with 300,000 miles, 10,000 mile OCIs on M1 5-10-30. Same engine as your fathers Sable. My Merc has been flauless on M1 10-30.
Every one on this site knows your problem isn't the oil.
I'm not saying M1 is the best. PP, Ams, Valv., GC, and others are good as well.Pass that swill off on some other site.