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roosterk0031 · 07-11-2016, 11:49 AM

Not sure on the Malibu's but on my Cobalts, if air position control knob is just about to the floor position or anywhere farther towards the defrost it turns the A/C on. I'd guess A/C on is a 2-3 mpg hit for my XFE and Impala.

07-11-2016, 11:49 AM	#12 (permalink)
roosterk0031 Master EcoModder Join Date: Jan 2011 Location: na Posts: 1,025 Thanks: 277 Thanked 218 Times in 185 Posts	Not sure on the Malibu's but on my Cobalts, if air position control knob is just about to the floor position or anywhere farther towards the defrost it turns the A/C on. I'd guess A/C on is a 2-3 mpg hit for my XFE and Impala.