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> Also, were diesel cars only getting those high mpg due to cheating the emissions limits? I never saw them in the US. I don't believe so. Diesel is more effic
by ghusto 4y ago
> Also, were diesel cars only getting those high mpg due to cheating the emissions limits? I never saw them in the US.
I don't believe so. Diesel is more efficient partially because diesel engines have been around longer (so have more improvements).
- sokoloff 4y agoThey have a much higher compression ratio and also aren’t pumping across a partially closed throttle plate virtually all of the time.