Axle Ratio Gas Mileage differences

Last post on Nov 26, 2006 at 11:21 AM

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#1 of 1 Axle Ratio Gas Mileage differences by threader Nov 26, 2006 (11:21 am)
Hi Everyone, First time GM owner here. Purchased a new 2006 Envoy SLT 2wd yesterday. Taking delivery this week. It came packaged with optional axle ratio 3.73:1 How much worse will my gas mileage be with this compared to standard 3.42:1 ratio? I am certain that the EPA figures were calculated with the standard 3.42:1 ratio. I don't need the extra towing capacity since at most I expect to pull less than 2000lbs of motorcycle and trailer. thanks for the great forum

#1 of 1: Axle Ratio Gas Mileage differences by threader; Nov 26, 2006 (11:21 am)

Hi Everyone,

First time GM owner here. Purchased a new 2006 Envoy SLT 2wd yesterday. Taking delivery this week.

It came packaged with optional axle ratio 3.73:1

How much worse will my gas mileage be with this compared to standard 3.42:1 ratio?

I am certain that the EPA figures were calculated with the standard 3.42:1 ratio. I don't need the extra towing capacity since at most I expect to pull less than 2000lbs of motorcycle and trailer.

thanks for the great forum