viper spray average fuel mileage is about 15 mpg foot out of it , 10mpg in it.
there is alot of new trucks sold out west right now QC's for around $35,000
also yes most run 92-93 octane.
Awesome truck fo rthe money.
check out
Viper Truck Club of America they have alot of info on the trucks, we also have three big build QC's goin on, two with paxton one with roe.
also great vendors and people there also, Lots and lots of info.