Gas mileage after putting on aftermarket wheels??

[ockevin]

Very nice staggered setup. Do you live in CA....? I see the 323 motorsports on the rim picture.

 

[Beau2424]

Lol no i am in north texas area.. Dfw.. Ordered them from cali though

 

[brfatal]

Wheel weight won't really affect gas mileage. Theoretically it should, but my other car has a set of 16 lb wheels and a set of 24 lb wheels and they both result in the same gas use over all (on heavier wheels it would take more power to get the wheels rolling, but less to keep them rolling than the lighter wheels).

What will affect your gas usage, as previously mentioned, is rolling resistance. This is a combination of tire compound and design and tire width. Harder tires burn off less energy rolling and obviously more tire contact patch with increase resistance as well. Wide summer tires will results in slightly lower MPGs than stock sized energy efficient all-seasons.

 

[ockevin]

Exactly right brfatal. I came from a Prius and the high mpg comes from the lrr tires and lightweight parts. The stock tires on a Prius got 48 mpg...I went to an 18" tires and wheel combo and the mpg dropped to 41 mpg. The biggest culprit was the non low rolling resistance tires.

 

[Dicko]

I have so many cars and have changed the size of the wheels and the only thing that seem to matter was the rolling resistance. Or the tire width. I had the green tires on my 2012 5.0 and it had 235 x 50 x 18 and I changed to 245 x 40 x 20 and there is no change also the tires are green tires I have.

 

[Dicko]

I was concerned about the ride with 20" over 18" and the only difference is when I make turns on the road the sidewall doesn't roll.

 

[Beau2424]

I was concerned about the ride with 20" over 18" and the only difference is when I make turns on the road the sidewall doesn't roll.

So the ride on your 20's is the same as your 18's?

 

[Beau2424]

Exactly right brfatal. I came from a Prius and the high mpg comes from the lrr tires and lightweight parts. The stock tires on a Prius got 48 mpg...I went to an 18" tires and wheel combo and the mpg dropped to 41 mpg. The biggest culprit was the non low rolling resistance tires.

I can see that now.. Riding with 275'd on the back is the culprit.. 16.6 mpg on my first full tank with these wheels... Yikes

 

[Mark_888]

Exactly right brfatal. I came from a Prius and the high mpg comes from the lrr tires and lightweight parts. The stock tires on a Prius got 48 mpg...I went to an 18" tires and wheel combo and the mpg dropped to 41 mpg. The biggest culprit was the non low rolling resistance tires.

Rolling resistance depends partly on the tire tread material, etc, and partly on the width of the tire. Prius has fairly narrow stock tires. Obviously, wider tires, and softer tires, improve handling, breaking, etc, but obviously hurt fuel economy.

 

[Dicko]

The ride with 245 x 40 x 20 is stiffer on rough roads but the ride is still good. How many ruff roads is anyone on? There is no difference on highways or city streets that are maintained.

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