Quote:
Originally Posted by W///
Completely different to how US rates fuel. Premium gasoline here does not equal RON 93. So for a lot of us, that's not the issue for rod bearings.
|
Yep. Different areas of the country get different octanes for "premium". In the Midwest, you can get 91, 92, or 93. In other places, they only have 91. And others can even get 94. Plus there's the whole notion of E0/E5/E10 which dilutes the whole mixture a bit.
Technically at high altitudes you don't NEED the 93, hence its rarity, but that's debatable.