Has anyone heard of something like this happening: I was getting ~40-43mpg on my 2001 Prius (roof rack and hilly Seattle) pretty much since the day we bought it (April '01). I got the postcard from Toyota saying that all 01 - 03 Priuses need to have the HV battery updated so I took my car to the local dealer and had them do that as well as the 3year/45k tuneup. When they took the car in, they said it needed 4 new tires as well. When I drove out of the dealership, I was getting 36-38mpg. Several months and many tanks of gas from different stations later and I was still stuck at 36-38mpg. I mentioned this when I took it in for the 50k checkup and they found nothing wrong. When I drove off the lot after that checkup, I was getting 35mpg! (Granted, it's only been about 50 miles since that checkup so things may change...)
I've heard that new tires can cause the mileage to drop, but that usually goes away after the tires wear in a bit. Has anyone else heard of a 10+% drop in mileage following the HV battery updated? Any ideas out there?
TIA,
Mike
I've heard that new tires can cause the mileage to drop, but that usually goes away after the tires wear in a bit. Has anyone else heard of a 10+% drop in mileage following the HV battery updated? Any ideas out there?
TIA,
Mike