Re:NYC allows citizens to report idling vehicles in exchange...
by paulmd on Sunday March 20, 2022 @02:05AM
(#30740532)
> Many are also designed to turn on and off constantly at stop lights, so they're designed to properly handle temperature and lubrication during the start/stop cycles.
Many late 00's engines were also designed to turn off cylinders to improve engine efficiency, but that turned out not to be implemented very well and engines died from carbon fouling. Big problem with Honda in particular iirc, and people would routinely bypass it to save their engines.
Automakers have to comply with CAFE standards and other mandates, but at the end of the day there's no mandate that an engine made with gen-1 technologies will make it to 300k miles either. Automakers don't really care if your engine dies in 10 years or not, they've put out lemons before and they will do it again.
Early CVTs failed at extremely high rates/short lifetimes, for example, and early OAT coolants like Dexcool were notorious for eating up every seal inside an engine. Early high-compression diesels had about a decade of their fuel injectors being eaten away by the abrasive sulfur before the ultra-low-sulfur highway diesel changeover. These technologies are of course completely normalized and trustworthy today, but that's not much consolation if you're the one paying the repair bills on a gen-1 lemon.
For some reason "don't upgrade to a v0.0 release of a new major version of iOS" is common knowledge here but nobody wants to apply that same logic to cars. The general public gets it though.
Now that cars have got 10 years of stop-n-start under their belt it's probably more reliable but still, it's a challenging design criteria for an engine.
Not saying diesel fumes aren't a problem either, mind... we probably need to go electric in the long run. But at the same time, on the level of personal self-interest... it's probably better for your engine to not start and stop constantly. It's just bad when everyone is idling because they don't want to start and stop. Tragedy of the commons.
Many late 00's engines were also designed to turn off cylinders to improve engine efficiency, but that turned out not to be implemented very well and engines died from carbon fouling. Big problem with Honda in particular iirc, and people would routinely bypass it to save their engines.
Automakers have to comply with CAFE standards and other mandates, but at the end of the day there's no mandate that an engine made with gen-1 technologies will make it to 300k miles either. Automakers don't really care if your engine dies in 10 years or not, they've put out lemons before and they will do it again.
Early CVTs failed at extremely high rates/short lifetimes, for example, and early OAT coolants like Dexcool were notorious for eating up every seal inside an engine. Early high-compression diesels had about a decade of their fuel injectors being eaten away by the abrasive sulfur before the ultra-low-sulfur highway diesel changeover. These technologies are of course completely normalized and trustworthy today, but that's not much consolation if you're the one paying the repair bills on a gen-1 lemon.
For some reason "don't upgrade to a v0.0 release of a new major version of iOS" is common knowledge here but nobody wants to apply that same logic to cars. The general public gets it though.
Now that cars have got 10 years of stop-n-start under their belt it's probably more reliable but still, it's a challenging design criteria for an engine.
Not saying diesel fumes aren't a problem either, mind... we probably need to go electric in the long run. But at the same time, on the level of personal self-interest... it's probably better for your engine to not start and stop constantly. It's just bad when everyone is idling because they don't want to start and stop. Tragedy of the commons.