85 octane
#1
85 octane
hey all, i have a 95 ram 1500 with the 360 and 94k miles. i bought the truck in indiana, and drove it on 87 octane until now. i recently moved to colorado and was wondering if my engine will run ok with 85 octane. i figured i would ask because i really dont want to possibly waste a tank of gas.
#4
Yes, there is E85, and he should not run that, but I doubt that is what he is talking about. In most of Colorado (mainly places over 5000ft elevation), 85 octane is the lowest grade fuel that is available at pretty much every gas pump. 87 is mid grade, and 90/91 is premium. This is due to the altitude. The higher the altitude the lower octane you can run. So if you have been running 87 octane somewhere else, and that was the lowest octane you could buy, then buying 85 octane in Colorado is the exact same thing, and will not cause you any problems what so ever.
E85 pumps are easily distinguishable from the regular pumps. If you are talking about 85 octane that is available at just about every pump station in the state, then that is what I am referring to, and is fine to run.
E85 pumps are easily distinguishable from the regular pumps. If you are talking about 85 octane that is available at just about every pump station in the state, then that is what I am referring to, and is fine to run.
Last edited by Silver_Dodge; 12-02-2010 at 10:28 AM.
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#10
In the Boise area, we have 87/89/91 octane, but we're only 2200-2500ft elevation. Not sure about the northern cities, but Idaho Falls and Pocatello are between 4200-4700ft, and they run 85 for the same-ish price. I haven't noticed a difference in my truck or the wife's new minivan, but my old Explorer would ping on anything less than 93.