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3. Engines are fragile now to meet standards

Mon Dec 8, 2025, 08:36 AM

Dec 8

Here’s a great article that talks about some of the challenges automakers have to deal with in designing engines that have to meet the cafe standards. Personally, I think the switch to thinner oils to minimize pumping losses is probably the biggest culprit in these engines early failures.
https://www.hagerty.com/media/maintenance-and-tech/new-engines-are-failing-is-piston-power-reaching-a-breaking-point/

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Highlight:

GM's Barra Says Tough Auto Mileage Rules Risked Plant Shutdowns MichMan Dec 4 #1

I guess the auto industry should set the standards then Redleg Dec 4 #2

Engines are fragile now to meet standards RoseTrellis Dec 8 #3