8th Generation Honda Civic Forum - View Single Post

2006_Civic · 04-07-2008, 04:53 PM

I started off getting about 42 to 46 MPG when first got my car. But now that I have learned how to drive it I was getting about 46 to 52 MPG. HOWEVER... I had to get new tires to pass state inspection and I have noticed some odd readings on my guages.

I had to get new tires on the first of the month and ever since then my milage readings have been different. My GPS shows that I am doing one speed but the speedo in the dash shows me going about 2 MPH faster. I have a feeling that the tires are a different diameter than the original tires and threfore causing my car to show inacurate readings.

Has anyone noticed this with their car and is there a way to re-calibrate the car for the new tires?

04-07-2008, 04:53 PM	#36 (permalink)
2006_Civic Junior Member Join Date: Apr 2008 Posts: 3	I started off getting about 42 to 46 MPG when first got my car. But now that I have learned how to drive it I was getting about 46 to 52 MPG. HOWEVER... I had to get new tires to pass state inspection and I have noticed some odd readings on my guages. I had to get new tires on the first of the month and ever since then my milage readings have been different. My GPS shows that I am doing one speed but the speedo in the dash shows me going about 2 MPH faster. I have a feeling that the tires are a different diameter than the original tires and threfore causing my car to show inacurate readings. Has anyone noticed this with their car and is there a way to re-calibrate the car for the new tires?