re: Second Toyota engine recall delayed because company doesn’t have a fix for problem

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I don't think it's as much a thin oil thing as much as it is a production problem.

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I dont know about the Toyota issues but the gm 6.2 problems were definitely the fault of 0w20 oil.

The corvette and camaros had no problems because they never switched to 0w20, they went from 5w30 to 0w40. Same exact main bearings in the cars and truck engine.

The theory that modern engine can't use heavier oil is also bullshite. Gm recommends 15w50 for track days because they know that thin arse oil is gonna break down from the heat.

Now take that knowledge and imagine the 0w20 in your pickup pulling a heavy arse travel trailer.

These thin arse 0 weight oils are nothing more than to squeeze out every once of fuel economy. It has absolutely nothing to do with how modern engines are designed.

None of these manufacturers gives a rats arse if your engine lasts 100k, they just want it to last past the warranty.