mileage and emissions are not necessarily in direct proportion, sometimes you have to loose mileage to meet emissions, it happens quite often for OEM calibrators who have a lot more to worry about than just making more power or using less fuel.
It's easy to get better fuel mileage than OEMs can - because we don't have to meet emissions with our "modified" cars.
Henry J's advertised 36mpg when new - and I think that's plausible - without meeting emissions - which wasn't required when they were new.
It's easy to get better fuel mileage than OEMs can - because we don't have to meet emissions with our "modified" cars.
Henry J's advertised 36mpg when new - and I think that's plausible - without meeting emissions - which wasn't required when they were new.
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