Comment Comment by wiremaus 85 is functional at elevation, but definitely still not preferable at elevation.Works best with carbureted engines, which are obviously few and far between these days. You shouldn't put 85 octane in a modern fuel injected engine period. parent wiremaus 6 years ago
Works best with carbureted engines, which are obviously few and far between these days. You shouldn't put 85 octane in a modern fuel injected engine period.