If I recall correctly the 87 octane rating was a "minimum requirement" rating.
Usually here in Utah we can get 87, 89, or 91 octane at the pimps so I run 89.
Did you correct for the oversize tires when you got 17 mpg's.
Those kinds of drives are where these rigs will see the very best mileage. When I drive highway 89 or any of the other state highways here in Utah I can get in the 16 mpg range but I have never seen 17. I also have 35's, 4:88's and a...
My triumph get 50 mpg's. If I use it to commute to work and run most of my errands than I am saving enough $$$ on gas to pay for the motorcycle and insurance!!!!! Plus it keeps the miles off the toyota and its also as fun to drive as the cruiser.
Even better is a motorcycle....
@GW Nugget are you planning on replacing any fuel parts, ie fuel filter, fuel pump, injectors, fuel pressure regulator etc.
I am very curious about your vacuum modifications, that sounds like an easy cheap way to get a small improvement.
I will be honest, I...