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Originally Posted by jims69camaro
so, how many of you have had a major mechanical failure that can be attributed to oil? none? that's what i thought. the oil companies have you brainwashed. but as long as you think you are providing your car with more protection, that's all that matters, right?
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I know of several engines that lost bearings or wiped out cams due to the owner changing brands of oil. There are differences in the brands and you should really stick to the brand the engine was broken in with. I always ask what brand oil the owner was using when I buy a used vehicle. Yes, you can switch around and most likely not have any problems, but why even risk it. And a car that has low mileage could have dried out seals and some surface rusting could start on the inside of the engine just due to moisture condensation on those days when temps vary a lot. I've gone out into my garage to find stuff in there completely wet from a cold night and then a sudden warmup. As for additives, hmmmmmm
I don't know that they really help but there seem to be some that can really do some damage.