Bearhog
Member
I was not sure how to search for this one so just decided to post.
Pretty much everyone has experience the phenomena where MPG is better when the tank is filled sooner, i.e. fill when fewer miles have been traveled and fewer gallons are required. My first guess would be that as the truck travels more miles, your average fuel economy drops due to more varied driving conditions. I believed this to be the case until today. Filled up my truck this morning and immediately jumped on the interstate and proceeded to travel 23 miles in an hour. All stop and go on I85 in ATL. So out of curiosity, I filled up at 53 miles and got this result. I averaged a nearly 2 MPG improvement over my normal average. 16.1 vs. 14.3. I figured I'd have some of the absolute worst driving conditions for MPG but low and behold, better MPG.
Anyone care to hazard a guess? I'm baffled.
Pretty much everyone has experience the phenomena where MPG is better when the tank is filled sooner, i.e. fill when fewer miles have been traveled and fewer gallons are required. My first guess would be that as the truck travels more miles, your average fuel economy drops due to more varied driving conditions. I believed this to be the case until today. Filled up my truck this morning and immediately jumped on the interstate and proceeded to travel 23 miles in an hour. All stop and go on I85 in ATL. So out of curiosity, I filled up at 53 miles and got this result. I averaged a nearly 2 MPG improvement over my normal average. 16.1 vs. 14.3. I figured I'd have some of the absolute worst driving conditions for MPG but low and behold, better MPG.
Anyone care to hazard a guess? I'm baffled.