92 Octane w/10% Ethanol vs 89 Ethanol Free?
#22
03-07-2013, 03:41 PM
Recovery Vehicle
#24
03-07-2013, 06:33 PM
Quick Update
Using 92Octane with up to 10% ethanol I was getting 13.2mpg
My first tank of 89 Octane ethanol free I added fuel injector cleaner and when I filled up next I calculated 13.8mpg
With my second tank of 89 Octane ethanol free my check engine light cam on after 2 days of driving. I added a bottle of octane boost and the light went off late that same day. I had checked to make sure the fuel cap was tight and it was). The second tank of 89 E-Free gas got me 14.9mpg and after I put the octane boost in I notice a big improvement going up the steep hills here.
I just filled up with my third tank of 89 E-Free and I put in a bottle of octane boost while filling up.
Thanks
Using 92Octane with up to 10% ethanol I was getting 13.2mpg
My first tank of 89 Octane ethanol free I added fuel injector cleaner and when I filled up next I calculated 13.8mpg
With my second tank of 89 Octane ethanol free my check engine light cam on after 2 days of driving. I added a bottle of octane boost and the light went off late that same day. I had checked to make sure the fuel cap was tight and it was). The second tank of 89 E-Free gas got me 14.9mpg and after I put the octane boost in I notice a big improvement going up the steep hills here.
I just filled up with my third tank of 89 E-Free and I put in a bottle of octane boost while filling up.
Thanks
Your check engine light coming on is a coincidence.
I told you your MPG would increase, and you are not hurting your engine at all.
#25
03-07-2013, 07:37 PM
I've been using strictly 91 octane eth. free lately, and loooving it.
The specified fuel for the rig. Wish I could get it here.
I read the GM tech bulletin about "Top Tier" gasoline, and it made sense to me. Switched to Shell (the only one on their list available to me) and gained 3 MPG. Typically buy 89 octane midgrade.
The specified fuel for the rig. Wish I could get it here.
I read the GM tech bulletin about "Top Tier" gasoline, and it made sense to me. Switched to Shell (the only one on their list available to me) and gained 3 MPG. Typically buy 89 octane midgrade.
#26
03-07-2013, 09:06 PM
My wife used to manage the Marathon Cass Rd at the bottom of the hill, it's not a gas station any more though.
I stopped using Shell fuel, my Shell runs a higher than 10% ethanol mix, they charge $.15 more than mid-grade and my MPG is horrible when I use them.
I go to Costco 90% of the time, they only sell 87 and 93 octane, E-10 though.
I stopped using Shell fuel, my Shell runs a higher than 10% ethanol mix, they charge $.15 more than mid-grade and my MPG is horrible when I use them.
I go to Costco 90% of the time, they only sell 87 and 93 octane, E-10 though.
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MARSRover
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