I have a 40 mile one way drive to work and have a CVT. This morning I needed to gas up, about 30 miles into the drive. The temp was around 40F, damp roads but no spray to windshield, sides of car are wet. My MPG over the first 30 miles was around 77.7 MPG, so I was happy with that under the conditions. I filled the tank, logged the numbers, and left the gas station. A mile or so down the road I looked down at the FCD and it was sitting around 125 MPG. The road there is flat and level, and I was running my usual 40 MPH. Under the weather conditions I would have expected about 80 MPG. It ran around 125 MPG for about 4 miles, I then hit a hill, and afterwards was running about the normal MPG I would expect. At the end of the 4 miles the trip computer indicated over 95 MPG since leaving the gas station. The whole time it was running at 125 MPG I kept looking at the OBDII C&C gauge. Everything looked normal, except the injectors were running around 0.9x to 1.0x. The AFR also seemed normal, with the numbers flickering between 14.5 and 14.6. After the 4 miles or so the injectors went back to what I would expect, around 1.6x to 1.7x. I had a similar experiance about 3 months ago. I filled up at a different gas station, and in an uphill stretch that I would have expected around 80 MPG I was getting 100 MPG. The last 10 miles or so to work are the hardest on the MPG, and I got to work today with 76.1 MPG for the drive, 75.9 for the 10.4 miles from the gas station.
Anyone know what is up with this? Nothing else looked out of place on the OBDII C&C, and the car seemed to be running normal. On the 5 speed cars, while running in lean burn, I assume that the AFR goes up on the gauge, correct? I did not over fill the tank, let it shut off, pulled the handle until it clicked once again, then was done. I always shut off the car when filling up. MPG for that tank was 70.9 according to the trip computer, 68.5 according to my gas fillup (but the car is tilted at this station, my numbers are always slightly low when I fill up there).
What was up with this? Any ideas? I want to do this all the time!
Anyone know what is up with this? Nothing else looked out of place on the OBDII C&C, and the car seemed to be running normal. On the 5 speed cars, while running in lean burn, I assume that the AFR goes up on the gauge, correct? I did not over fill the tank, let it shut off, pulled the handle until it clicked once again, then was done. I always shut off the car when filling up. MPG for that tank was 70.9 according to the trip computer, 68.5 according to my gas fillup (but the car is tilted at this station, my numbers are always slightly low when I fill up there).
What was up with this? Any ideas? I want to do this all the time!