ac, I am with you....avc8130 said:
Agreed. I live in CO and my S10 has been slowly getting better mileage over the summer as she approaches 5k miles. My last fill up was 51 and I pretty much flogged that tank at 85+ indicated on the commute like the previous tanks that were all mid 40's and creeping up but it took a leap. I would say it is a fluke but my Tundra has also been getting better mileage lately - it broke 18 the last tank. It has never done that before in 191,000 miles. I would swear we are getting gas here with less ethanol this summer. We used to get ethanol only during the winter but that changed a few years back. When it used to switch over you would see your mileage fade over the cours eof a month or so and then regain it when they went back. It sure as heck feel like that is what I am seeing.scott123007 said:
Lol...MidlifeMotor said:
Very interesting Tpak. I thought it had more to do with the thinner air at altitude causing the fuel injectors to respond accordingly, and hell, for that matter, the thinner air causing less aerodynamic drag, (LOL), but now that I think of it, there were some ethanol free pumps, but I only remember them being 85 octane, which I never used. I did however, use 87 many times, when I was in Colorado, but like you're speculating, maybe with a lower dose of ethanol?tpak said:
Who knows. I only ever run 85 octane here - it is our lowest octane but perfectly fine unless you have a pinging issue. My Vstrom always got better mileage on it. For grins today I filled up with 89 - our highest octane just to see. Last year when I first got the S10 I tried it and it was no different between the two. Maybe after 5k miles it will tell a different tale. My last tank mileage was down but had a lot of off road goofing around so it doesn't count.scott123007 said:
