Larger wheels vs gas mileage; And few other thoughts
#1
Larger wheels vs gas mileage; And few other thoughts
Now I'm all wondering about what I really want in a truck. I want the denali front end but on the SLE or SLT. I like the SLT better cause it has the woodgrain and stuff. I contacted a salesman at a dealer to see if i can get the truck built specifically like i want it, with the denali front end on either of those other 2 models. I also lately have been falling in love with the larger wheels.
The 22 inch wheels just look so much more full. I wonder if gas mileage will decrease with the 22's vs the 20's, and the 20's vs the 18's? The larger the wheel the less gas mileage? If its a GM designed wheel it shouldnt matter if the wheels are larger as far as gas mileage? What about the speedometer being thrown off? I guess if it is ordered, they should have it all matched up at the factory?
The 22 inch wheels just look so much more full. I wonder if gas mileage will decrease with the 22's vs the 20's, and the 20's vs the 18's? The larger the wheel the less gas mileage? If its a GM designed wheel it shouldnt matter if the wheels are larger as far as gas mileage? What about the speedometer being thrown off? I guess if it is ordered, they should have it all matched up at the factory?
#2
I'm assuming when you say 18, 20 and 22 you are talking rim size. The diameter of the tire will affect gas milage not the rim size. I went from a 32 to a 33 inch tire and didn't notice a difference in gas milage. I'm sure there was but I didn't notice it. A large change like from a 32 to a 35 will cause you to down shift more often thus run at a higher RPM. Then you would notice the gas milage go down.
#3
I'm assuming when you say 18, 20 and 22 you are talking rim size. The diameter of the tire will affect gas milage not the rim size. I went from a 32 to a 33 inch tire and didn't notice a difference in gas milage. I'm sure there was but I didn't notice it. A large change like from a 32 to a 35 will cause you to down shift more often thus run at a higher RPM. Then you would notice the gas milage go down.
I might not be accurate on the size of the 20's tire that gmc puts on them. I'm sure its a 275 something but cant remember if it was a 50 or 55, or maybe a 60
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SouthBayZ71
Chevy Silverado/ GMC Sierra Forum
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11-02-2007 03:06 AM