Originally Posted By: ZionZR2
Originally Posted By: kam327
Hmmm, what information were you hoping to get by testing the factory fill after so few miles? I just sent mine in with 5k miles on the post-FF oil, after dumping the FF at 1,500 miles, to see if fuel dilution is a problem with my '12 Focus's DI engine and whether I can safely go to 7.5k OCI or even the "recommended" 10k mile OCI with synthetic blend. Just wondering what info this test gives you especially since you've switched to synthetic.
Wanted a starting point to compare to mainly. This test is probably less informative than the next one will be but wanted something to compare the next one to.
Also there was not a switch to Synthetic here. Synthetic is Factory Fill and the Owners Manual states this engine requires 0w-20 Synthetic. The Factory Fill was an unknown starting viscosity. The Blackstone folks seem to think the Factory Fill was 5w-20.
The Subie forums seem to agree that the High Moly is not necessarily from the factory oil fill but from elsewhere in the engine manufacturing process.
The moly is from the manufacturing process and the factory fill Idemitsu, which gets higher levels of moly than the dealer service fill.
-Dennis