Originally Posted by jharris2

When I saw the article in this morning's paper, I immediately thought of this forum!!

On my current road trip (will be 1,500 miles or so when complete, mostly highway miles), I've tested 87 and 93 octane fuel. Also tested 10% ethanol fuel and standard dinosaur fuel.

Net -- no noticeable difference in the V6 in terms of mileage or highway power. With 87 octane, it will easily jump from 70 to 80 mph to pass an 18-wheeler. Mileage has been running around 21-22 highway, 19 mixed (Chicago traffic that goes 0 to 60 to 0 pretty quickly).

I've run it in 2WD mode all trip, with the air conditioner running almost all the time.

With 23 gallons in the tank, that gives a range of over 450 miles, although the trip computer says 420.

Unless I run across a station (and did in Bloomington, IL) where premium fuel is the same price as regular, I'll just stick with 87 octane and save $0.20 per gallon. That will leave a bit more money for mods!!