quote:Ken2 I believe both are true. My understanding is that the rings lack the proper amount of tension, and there are no drain holes. Whatever drainage solution they tried to incorporate (some claim none), it doesn't work. The oil cooks onto the rings and freezes them in place. This happens pretty quickly, usually by 50,000. Some people escape this problem: no one knows why. (Some have theorized it has to do with the way the rings are oriented in the grooves at the factory.) Whatever the case, it doesn't matter what kind of oil is used -- yes, that includes Mobil 1, Redline, and Amsoil -- or how often the oil is changed. Most people at SaturnFans.com have been running one kind of synthetic or another, and have been changing every 3000 miles: doesn't matter. Same goes, I hasten to add, for any kind of dino oil I can think of off the top of my head. Some say bad valve stem seals contribute to the problem, but I have yet to hear about someone reducing the problem with a valve seal replacement. I myself replaced the seals at 100,000 miles: they looked perfect to the naked eye, and the oil burning didn't improve. I've tried several Auto-RX treatments, several piston soaks, and a couple runs of Neutra in the crankcase to no avail. I'm now trying a rebel application (Frank might kill me) of Auto-RX. I dumped in one bottle at 1100 miles on dino oil, and have been topping off from a second bottle as the oil is burned off. I'm operating on the theory that the Auto-RX needs time to splash around the ring pack, and that the pace of oil burning prevents it from staying at a decent concentration within the oil to do the job. Topping off with more Auto-RX will hopefully maintain a good, heavy concentration throughout the treatment. When I drop this oil, I'll do it all again a second time on the next batch, and then follow up with one "Saturn-normal" application. When that's finished, I'll stick with the conventional oil for at least a few changes afterward. At that time, if it hasn't worked, it won't, and then I just give up!
Originally posted by Ken2: Kev, Is the Saturn oil burning problem due to lack of spring tension of the piston rings or the oil control ring groove or drain holes being too hot and filling with cooked oil and preventing the oil control rings from scraping the excess oil off the cylinder walls the way they should? Ken