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101Volts · 08-03-2014, 01:06 PM

Thanks.

As for the new tires, they throw off the odometer. But what should I calculate by? I read at one source that I should calculate by 1.09%, and yet Automobile-Catalog says the tires are 1.2% larger than stock.

Stock: P205/75R15
New: 225/70R15

Source 1: http://www.1010tires.com/Tools/Tire-...5R15/225-70R15

Source 2: http://www.automobile-catalog.com/ti...automatic.html

08-03-2014, 01:06 PM	#61 (permalink)
101Volts Master EcoModder Join Date: Dec 2012 Location: Pennsylvania Posts: 506 Woody - '90 Mercury Grand Marquis Wagon LS Last 3: 19.57 mpg (US) Brick - '99 Chevrolet K2500 Suburban LS Last 3: 12.94 mpg (US) M. C. - '01 Chevrolet Impala Base 90 day: 18.73 mpg (US) R. J. - '05 Ford Explorer 4wd 90 day: 16.66 mpg (US) Thanks: 936 Thanked 34 Times in 28 Posts	Thanks. As for the new tires, they throw off the odometer. But what should I calculate by? I read at one source that I should calculate by 1.09%, and yet Automobile-Catalog says the tires are 1.2% larger than stock. Stock: P205/75R15 New: 225/70R15 Source 1: http://www.1010tires.com/Tools/Tire-...5R15/225-70R15 Source 2: http://www.automobile-catalog.com/ti...automatic.html __________________