In Reply to: Gas Mileage with Conforti Chip/problems posted by keith on September 15, 1999 at 12:18:43:
: I have a 1994 530ia with a Dinan Chip installed. Although I do have to use premium gas, my gas mileage increased about 10% with the chip under normal driving conditions. However, based on the rave reviews about the Conforti chip, I am thinking about buying pne for my car. Any experiences with increased/decreased gas mileage with the Jim C. chip? Also, any negative experiences with the chip? Thanks in advance.
I'm getting 23-25 MPG with my JC chipped 530iA going back and forth to work which is 50% highway. With the stock chip I was getting 20-22 MPG. Since I was using premium gas even with the stock chip, the extra mileage saves me close to $100 per year in gas. That's a pretty good return.