Hurricane Irma
#1
Hurricane Irma
Hoping all you HHr buddies have your machine all buttoned up somewhere in a garage and you and your families are safe. Praying for all of you. My HHR is in my garage and the door is double braced with add-on vertical steel braces.
#6
Very lucky. I have had to mix some 87 into greggs tank full of 93, and curiously I havent noticed any change in performance. My rough guesstimate is that the octane is now floating around 90 due to the mix, so maybe thats why. Have I been lying to myself running 93 octane this whole time? Maybe Irma taught me something. I might fill up with 89 next time and see what happens.
#7
Very lucky. I have had to mix some 87 into greggs tank full of 93, and curiously I havent noticed any change in performance. My rough guesstimate is that the octane is now floating around 90 due to the mix, so maybe thats why. Have I been lying to myself running 93 octane this whole time? Maybe Irma taught me something. I might fill up with 89 next time and see what happens.
I have put nothing in my 09 2.2 but 87. Runs like a little top...
Am I poisoning my little doodlebug?
#8
Well, E85 is very high octane. The lower the octane, the more the timing is retarded, and you can lose performance on a(relatively) higher compression engine. The 2.4 is 10.4:1 compression, the 2.2 is 10:1. So a 2.4 will benefit a little more than a 2.2 will from higher octane.
But certainly experiment with midgrade, Arad, you may be quite happy with the results!
But certainly experiment with midgrade, Arad, you may be quite happy with the results!