[headshrink]

Originally Posted by algs26

I recorded 165.7 miles and 1.441 gallons (still 115mpg though). My lifetime odometer difference matches the trip. But I always let the pump shut itself off so it may have shut off early. Also, I didn't do a visual check.

I might have the gas gauge on camera...

I would guess you're stopping about 1/2 a gallon early by letting it shutoff itself, and not easing it up to the bottom of the filler thingy. But if this is your standard practice I suspect it may indicate a large variation between shutoff points between different pumps.