The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Impressed with increase in gas mileage with square body!

grs · 11-24-2011, 02:04 PM

I was getting 19 mpg on the freeway. I replaced the bad egr valve and the mpg went up to 24. I have a 305 engine with a 700R4, and TBI. Check your mpg on the freeway. Not stop and go freeway driving. Let us know what you get.

11-24-2011, 02:04 PM	#15
grs Registered User Join Date: Jan 2010 Location: Roanoke, Tx. Posts: 1,561	Re: Impressed with increase in gas mileage with square body! I was getting 19 mpg on the freeway. I replaced the bad egr valve and the mpg went up to 24. I have a 305 engine with a 700R4, and TBI. Check your mpg on the freeway. Not stop and go freeway driving. Let us know what you get.