wheel diameter

The Highlander said:
I never said BIG. Just cause error MPH and poor fuel economy. That's it.

So you see a picture 15" got 23 MPG and 19" got 21 MPG and 3 MPH error which true that what I talked about. 1" different is hard to noticed but 5" or more get noticed so easy.

I drove customers's Vortec 5.3L V8 *very popular from here* with 18" wheels like thousand times already till I drove same truck with Vortec 5.3L V8 with 30" wheels and it feels like v6 due poor torque. My experience is real world.
Click to expand...

See the bottom of the pic's specific data, weight of the wheel/tire that may affect the MPH and fuel economy even the 15" and 19" rims use the same tire diameter. The heavy wheel/tire weight is good brake performance over the light wheel/tire weight (Sequoias mentioned). I didn't know that the heavy wheel/tires are more noise than the lightly wheel/tire, though....:hmm:
 
deafsmogtech said:
See the bottom of the pic's specific data, weight of the wheel/tire that may affect the MPH and fuel economy even the 15" and 19" rims use the same tire diameter. The heavy wheel/tire weight is good brake performance over the light wheel/tire weight (Sequoias mentioned). I didn't know that the heavy wheel/tires are more noise than the lightly wheel/tire, though....:hmm:
Click to expand...

It's possible that performance tires do generally make more road noise than the cushy passenger tires.
 
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