In Reply to: That's a normal, low consumption rate posted by DG2 on September 23, 1999 at 20:34:43:
I don't agree that 1QT/5.5K is a 'normal' rate. It may in fact be related to the break-in period or something. I just don't know. It's just one more case where more frequent oil changes would likely detect consumption and resolve any detrimental effects before the oil light would come on. What would happen if he wasn't in a position to stop the car or add oil. This could have happened on a long trip --- without the prospect of easy access to synthetic oil.
But one thing I'm sure of -- is you can take all that test data on oil life and throw it in the garbage can when one of our cars operates with less oil than is specified. Anyone think that synthetic oil is so great that we can run our cars until the oil light comes on without any effect --- as long it's less than 15k?! The life-cycle tests that are done are done with FULL systems at normal operating conditions and temperatures.
I notice some of the other posts do mention that oil is subjected to combustion products. hmmm. Any doubt the conditioners can loaded up under these circumstances.
BTW, I'm glad you caught it. And, I don't think we can really fault you for not checking your oil level more frequently.
(My Owner's Manual isn't handy, but it's a good question --- as to whether it states that we should check our oil levels every xxx miles between changes. Wasn't necessary when we 'checked' it during oil changes in the old days.)