Re: redline oil
Please dont shoot the messenger. Theoretically synthetic oil doesnt wear out. It just fills up with contaminants. Therefore, if it doesnt wear out and contaminants determine when to change. So each car will be different. The more blow-by, quicker the change and so with other contaminants. They make a small inexpensive test kit to check you own oil for "additives". Would that not be the smart thing to do instead of guessing and spending $100 when you really dont know. Also a plus side of this is knowing what you are adding to the oil. It will let you know what shape the engine is in. If the oil changes, then the engine is changing.
Just saying
charles
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