Oh yeah.I noticed nothing in the manual says anything about higher octane gas other than do not go below 87. What I filled today was 88 octane. Has anyone on here tested the different octanes?
obermd, did you see much difference in the mid grade in Colorado vs the premium? I do recall being on a trip with my dad to Colorado in what is now my brother's Cruze and knowing we were about to go back to Texas so we filled with mid grade to get 87 for Texas. I'm about 3500 ft above sea level in Lubbock so I still get reduced octane.
When at sea level should I still use higher grade for the turbo?