Originally Posted By: FetchFar
Originally Posted By: wemay
Originally Posted By: JustinH
Is the goal here to have a pretty engine that you can eat from, or get good service out of the engine?
Stick with what you are doing.
Bingo!
Some folks always try to one-up others. As stated, great job maintaining that engine with a solid oil choice.
Except the real truth doesn't care about people's feelings. Its true it usually makes more sense to go to longer OCI's on synthetic, less time wasted, less oil to recycle back into the system, and... something unseen here: What do the rings look like? I think the greater chemical stability of a synthetic means the rings will be less gunked up over time.
Not knowing what the rings, pan, rods, bearings etc look like are all unkown as well. The 'real truth' here is that he has gone 257000 miles on conventional without issue. This seems to be hard for some people to just praise and not find fault with. (Not you specifically Fetchfar). Many people enjoy changing oil at 5k and have zero desire to go further, no matter if they can on syn. Its enjoyable and offers a small sense of accomplishment. I would venture to say that the peace of mind obtained by a synthetic user at 10K miles is the same feeling a conventional user gets for changing earlier, knowing there's fresh oil in the sump. Different strokes...
Take note, I'm not arguing against the abilities of synthetic oil, only that we accept it isnt the only ballgame in town.