Mule Pro FX manual specifies 87 octane gas for the MulePro FX. In the non-mountain states that is "regular" gas. However, in mountain states "regular" gas is 85 octane. Was this an oversight in the manual, or is 87 actually the minimum octane required (this would require "midgrade" gas in mountain states. My Ford 350 V10 vortex requires 87 octane so it is strange that a utv would require the same.
I am still in the "shopping mode" for a utv so the answer to this question will help me decide on brand. Thanks.