Feb 12, 2009 #1 B BernieM New member Joined Jun 5, 2008 Messages 4 Reaction score 0 Points 1 Do the refineries change blend?
Feb 12, 2009 #2 L LouisG Member Joined Jul 17, 2008 Messages 53 Reaction score 0 Points 6 The blends do change in some areas of the country, but Octane ratings don't change. 89 octane is always 89 octane.
The blends do change in some areas of the country, but Octane ratings don't change. 89 octane is always 89 octane.