RV Fuel Issues & Prices - Post 'Em Here!
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Forum Discussion
Desert Captain wrote:
In Idaho and Wyoming (maybe in Utah as well but I just arrived and have not bought gas here yet), regular is 85 octane and you pay a premium for 87, usually about a dime gallon more. Got the 87, and given the mountains we are in 85 was not what I wanted, paid 3.79.
The "excuse" for 85 is the altitude factor. But you never see a ten or 12 cent price drop.
87 octane isn't likely to be of any benefit to you in the mountains, but I've never read anything about the potential for long term damage, or not, to engines designed for 87.
On the other hand, we've lived at 9000' for nearly 15 years and seldom operate our vehicles below 6000'. In that time we've driven three 5.4 Fords and the 300 hp 4.6 Northstar (burned the 89 in it, not the 91 called for) and have never had a hint of engine trouble.
As you may know, using a higher octane fuel than the mfr. calls for is a waste of money, does not improve performance, and just makes it a tad harder to start in cold weather due to high-octane gas requiring higher temperature and pressure to ignite.
So with my experiential history I'll go with the octane level available in a given region and save a few bucks.
