Originally Posted by Railrust
Originally Posted by Cujet
Originally Posted by andyd
Keeping rings free from the get go is a function of the engine design, the OCI and the general level of the engine's up-keep. These days oil is good enough so that just about any oil within the specc'ed grade will deliver similar service as Tig1's preferred brand. The main thing with oil brand loyalty is you dont waste time comparison shopping
That is simply not correct. Examples abound, and even a favored brand (Toyota) has serious issues with stuck rings. It's not just neglect anymore. It's that low tension piston rings get stuck more easily.
I tend to agree, oil consumption, stuck rings, seems to be an issue right now and going forward with these low tension ring/direct injected vehicles. Have a friend who owns a German auto repair facility - he says the oil consumption and buildup of soot on the piston rings on engines he's tearing down are ridiculous...stuff he wouldn't normally see on engines that are lower in mileage. He thinks the high pressure injector is causing fuel to mix and burn with the oil on the walls and the result is carbon buildup on the rings. I don't know, but something seems to be going on...I've owned two direct injection vehicles now...they both have burned oil, the higher mileage one got worse and worse as it went.
I think your friend is onto something. DI is improving imo, but there is still quite a bit of room for improvement.