How many MPGs do you loose when running AC?

[rockclimber]

It's too hot for me to care.

 

[Ecomike]

Diesel?

Good guess, LOL.

 

[MAY POP]

About 1 mpg is about what it seems to me.
Ron

 

[91AzXJ]

I loose 1-2 MPG with AC

 

[ktwalker01]

I have an OHC doing 70 (about 2k rpm) on the highway it shows roughly 17-18 with ac on and then 19-21 ac off, windows up or down have ZERO change.

oh also I have a 4.0L 3.07 gearing 1999 np231 ax15 with 235/75/15 tires with the proper speedo gear.