Chevrolet Corvette Stingray C7 Forum - View Single Post - Used 17 GS

REVVIC · 10-29-2017, 12:27 AM

If you have run through the complimentary fill up and at least one tank of premium with mpg data at circa 15 local and 30 highway, you're on track. If not, take your GS to a reputable Chevy dealer.

10-29-2017, 12:27 AM	#3
REVVIC Drives: 2014 Z51 Velocity Yellow Join Date: Jun 2013 Location: Tacoma WA Posts: 170	If you have run through the complimentary fill up and at least one tank of premium with mpg data at circa 15 local and 30 highway, you're on track. If not, take your GS to a reputable Chevy dealer. __________________