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I disagree completely. He is continuing to perpetuate old myths about motor oils.The old myth that friction reduction additives of synthetic oils do not allow a new engine to properly break-in has been debunked about 10-15 years ago. Break-in is just wear and if your reduce wear you extend the life of your engine. It might take a little longer for your rings to seat and that might reduce your MPG, but you are still getting many more usefull miles out of your engine.As for mixing brands. That is also been debunked. If you buy an API rated oil (which the auto manufacturers require) you are getting an oil that meets the requirements of that engine and the standards for that API oil classification are set to insure compatiblility with all other oils meeting that API specification.I think the only thing he said that was true is that you need to change your oil often!...Rich
I disagree completely. He is continuing to perpetuate old myths about motor oils.
The old myth that friction reduction additives of synthetic oils do not allow a new engine to properly break-in has been debunked about 10-15 years ago. Break-in is just wear and if your reduce wear you extend the life of your engine. It might take a little longer for your rings to seat and that might reduce your MPG, but you are still getting many more usefull miles out of your engine.
As for mixing brands. That is also been debunked. If you buy an API rated oil (which the auto manufacturers require) you are getting an oil that meets the requirements of that engine and the standards for that API oil classification are set to insure compatiblility with all other oils meeting that API specification.
I think the only thing he said that was true is that you need to change your oil often!
...Rich
