Originally Posted by kschachn
Originally Posted by BucDan
I'm pretty sure the moly is 100% well within range for Toyota oil. I believe their 0w20 oil that you can buy from the dealership has the same amount. Honestly can't imagine moving from a high moly oil to a little no moly oil like Mobile 1 or Castrol.
Why is that? Is Mobil 1 or Castrol under-formulated?
Not necessarily, just that you go from 787 ppm per OP's post, down to 100 ppm. It's not the end all be all additive, but it's really nice to have.
Originally Posted by dave1251
Most of the molybdenum is not from the motor oil.
TGMO typically has about 120 PPM of molybdenum.
Mobil One 0W20 has 80-100 PPM of molybdenum..
There are other friction modifiers such as Boron, Titanium, and organic FM's such as sulfates.
I would not focus on a single additive.
OP change in 5K miles if you like and I recommend another UOA around a year from now. It will provide a better picture. 8-10K miles should be very easily obtainable for this engine.
120 ppm? That seems low according to OP's post above. If not from the oil, where does it come from??