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Old 02-15-2022, 02:09 PM   #56 (permalink)
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Originally Posted by MeteorGray View Post
My 2015 Mazda3 has a 2.0 engine rated at 13.0:1 compression ratio. It does just fine with regular gasoline. No hint of a problem.

That has helped lead to a 4.6 cents-per-mile fuel cost over the ~40,000 miles I've driven it, which, admittedly, was before China's bat virus kicked us in the butt.
If GM would have continued manufacturing this drivetrain they could have gotten the best of both worlds on plain 87
2020 era engine controls are a world different from even 2015 let alone 10+ year old tech

A modern version of this would be smaller, lighter, more powerful and more fuel efficient.
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