DanW
Well-Known Member
- Thread starter
- #91
Those of you that run oil hot, stay away from Mobil oil, as this oil ware protection significantly reduced at elevated oil temperatures.
Also, contributes to lots of blow by and premature shearing.
Its been well known issue in Genesis community (bad tests and blown engines with Mobil). I have tested it on 3.5 EcoBoost and oil analysis confirmed high ware and excessive blow by, while others (Quaker state) show normal tests. I run my cars hard and hot, and test each oil change 5k intervals.
Oils that offer good ware protection and no premature shearing- Amsoil and Quaker state.
My experience with M1 doesn't agree with that at all. I've never have had an experience like that with Mobil 1. Depending on which you use, it has among the highest flash points, especially AP or EP.Those of you that run oil hot, stay away from Mobil oil, as this oil ware protection significantly reduced at elevated oil temperatures.
Also, contributes to lots of blow by and premature shearing.
Its been well known issue in Genesis community (bad tests and blown engines with Mobil). I have tested it on 3.5 EcoBoost and oil analysis confirmed high ware and excessive blow by, while others (Quaker state) show normal tests. I run my cars hard and hot, and test each oil change 5k intervals.
Oils that offer good ware protection and no premature shearing- Amsoil and Quaker state.
I've got an Ecoboost that I run 10k every oil change with Mobil 1 EP 5w30. It is severe duty with lots of city driving loaded with people and cargo. The oil has never sheared out of grade and never used a drop. I ran 12k on one OCI and it still didn't show a problem. That's after about 140k miles on nothing but M1 EP.
M1's top oils and some of their "vanilla" M1 oils have significant PAO base stocks. They handle higher temps than Group III or GTL base stocks. They flow at lower temps. They resist oxidation better and can run longer OCI's.
Not sure what's going on with the Genesis community, but I've never once encountered someone ouside of the internet that has had Mobil 1 products fail them in any way. They've certainly served my engines well, including the old 3.8 which is currently at 142k.
Every UOA I've done with Mobil 1 has been good and showed no issues with the oil in UOAs. I can't remember a single one over many years that showed the oil to be out of grade, even slightly, or even close to it.
I had a 99 Chevy Silverado that has run Mobil 1 vanilla 5w30 since new in 98. I sold it to my secretary's husband and he continued the same regimine, with 5k OCI's. That truck is approaching 400k miles and the body is wearing more than the engine. If it were a flawed oil, I doubt we'd see that.
I'll let you know if my Ecoboost ever wears out. It's been fine on M1 EP and will continue to run it, 10k per change. I doubt there are too many engines harder on oil than that one, especially in a city driven people mover like the Transit 350.
I've got several UOA's on my JL's 3.6 with Mobil 1 EP and AP. No issues there, either.
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