10-01-2021, 02:54 AM
We sometimes forget that there are definite benefits to emissions regulations beyond the improvements in air quality. They mandated that vehicles had to maintain the effective level for a certain amount of years/miles.
I grew up around cars and bikes, and in the '60s-'70s, 10-12mpg was normal. So were valve jobs at 40k miles and engine overhauls at 75k. rarely would cars go beyond 100k without a rebuild. Same with bikes - valve jobs at 15-20k miles, overhauls at 40k.
Now we have bike engines easily going over 100k. My girlfriend at the time bought a new 1981 Toyota Starlet, and sold it a few years ago, still running well, with over 400k on the original engine AND clutch.
I grew up around cars and bikes, and in the '60s-'70s, 10-12mpg was normal. So were valve jobs at 40k miles and engine overhauls at 75k. rarely would cars go beyond 100k without a rebuild. Same with bikes - valve jobs at 15-20k miles, overhauls at 40k.
Now we have bike engines easily going over 100k. My girlfriend at the time bought a new 1981 Toyota Starlet, and sold it a few years ago, still running well, with over 400k on the original engine AND clutch.