The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What kind of gas mileage do you get with your 67-72?

**Stocker** · 10-03-2018, 01:02 PM

I haven't bothered to check my fuel mileage in many, many years -- it is what it is, and it ain't anything to brag on! Many years ago I made a round trip from NorCal to eastern Kansas & back, about 3000 miles or more iirc. This was when the 55 mph law was in effect, and my truck isn't real happy going much faster anyway. I got between 10.5 - 11 mpg on that trip. '72 K20, stock 350 with TH350 trans and 4.10 gears. At that time I was running 7.50-16 bias-ply traction tires on split rims.

10-03-2018, 01:02 PM	#33
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,498	Re: What kind of gas mileage do you get with your 67-72? I haven't bothered to check my fuel mileage in many, many years -- it is what it is, and it ain't anything to brag on! Many years ago I made a round trip from NorCal to eastern Kansas & back, about 3000 miles or more iirc. This was when the 55 mph law was in effect, and my truck isn't real happy going much faster anyway. I got between 10.5 - 11 mpg on that trip. '72 K20, stock 350 with TH350 trans and 4.10 gears. At that time I was running 7.50-16 bias-ply traction tires on split rims. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay