Any of you guys with premium-burning daily-drivers notice a big difference in mileage between nonoxy premium & the ethanol premium? I few years ago, I used to see maybe a 1-2 MPG difference in my GTP, but that was about it. I decided to run nonoxy in it again a few weeks ago. Now, I'm seeing a significant difference. On the nonoxy 91 from Fleet Farm, I've been getting a whopping 26.5 MPG average! Nothing has changed, aside from the fuel. When I go back to the oxygenated stuff, the average is only ~22.5 MPG. That's a 17% increase in fuel-consumption. The nonoxy is only 20 cents more than the oxy premium. Let's say the nonoxy is 3.99/gal & the oxy is 3.79/gal. That's only a 5% decrease in cost. So, you pay 5% less, but you use 17% more fuel. Shit, I'm going to run nonoxy all the time!
Given that I moved last fall, I have no way to compare my current average on the oxy stuff to what I got a year a go, but somewhere along the line, I noticed that my mileage on trips wasn't as good as it once was. I chalked it up to the age of the vehicle. Apparently, that is not the reason.
Anyone know if they upped the percentage of ethanol in the past year or so?
Joel
Given that I moved last fall, I have no way to compare my current average on the oxy stuff to what I got a year a go, but somewhere along the line, I noticed that my mileage on trips wasn't as good as it once was. I chalked it up to the age of the vehicle. Apparently, that is not the reason.
Anyone know if they upped the percentage of ethanol in the past year or so?
Joel
Comment