Originally Posted By: KrisZ
Originally Posted By: tig1
Originally Posted By: Drew99GT
Yea, so much for the bull [censored] about the rings being gummed up with conventional oil.
Nice job; keep on keepin on.
Drew,
I have seen coked rings in a 4 cyl Ford engine that was abused on dino. It's not that the rings are gummed, they get carboned up where the rings cannot fully seat againt the cyl walls. The carbon was so hard that it was like there was no ring expansion at all. Serious blow by resulted and high oil consumption was a result. Coked rings are a major reason for engines using oil. Oil oxidation leads to varnish and at times ring coking. Quality synthetic oils almost never experiance this.
Why not? Synthetics are not impervious to break down, only take longer to do so. You said yourself that the engine was abused on dino. Once you start talking abuse, even a quality synthetic would not have prevented severe ring coking. Perhaps the process would take longer, but it would inevitably happen regardless.
Nice try, but no cigar. To get ring coking with a quality synthetic would require very long OCIs. 20-30K OCIs and beyond. Who knows? I personally know folks that do 15-25K OCIs on M1 oils with 200-400K on their engines and there is no evidence of ring coking. I'm sure that Amsoil dealers can verify that they have customers doing long OCIs like that without a problem.
The good news is, you can have that same confidence that your engine will never have this problem.