petepusa Posted January 16, 2007 Share Posted January 16, 2007 Just wondering if the 20" rims will increase the fuel economy compared to the 18"? If yes will it be a significant difference? Quote Link to comment Share on other sites More sharing options...
StevenCaylor Posted January 16, 2007 Share Posted January 16, 2007 IIRC, they will DECREASE fuel economy due to increased weight and increased drag (due to addition width). Quote Link to comment Share on other sites More sharing options...
rjr Posted January 16, 2007 Share Posted January 16, 2007 Is there any benefit other than that they appear trendy? Quote Link to comment Share on other sites More sharing options...
slay65 Posted January 16, 2007 Share Posted January 16, 2007 When I was buying my Expedition, I was told by my salesman that there really is no benefit to the 20" tires other then cosmetics. Of course I don't always believe what my salesman tells me so who knows. Quote Link to comment Share on other sites More sharing options...
NLPRacing Posted January 17, 2007 Share Posted January 17, 2007 Just wondering if the 20" rims will increase the fuel economy compared to the 18"?If yes will it be a significant difference? Shouldn't matter if you go with 18" or 20", mileage will be shitty either way. :P Seriously though, the 20" wheel weighs more than the 18" wheel and if I had to guess, I would say 10 pounds more per wheel. The added mass would definitely affect mileage negatively, but on a vehicle that big, it shouldn't matter too much. I say, if you like the 20's better, get'em. Quote Link to comment Share on other sites More sharing options...
ELlover Posted January 17, 2007 Share Posted January 17, 2007 I agree with NLP your gas mileage isnt going to be pretty either way, unless you live in the flat lands. Size of the rim isnt going to make a huge difference. If they are factory there shouldnt be any difference. Quote Link to comment Share on other sites More sharing options...
Ron W. Posted January 17, 2007 Share Posted January 17, 2007 The wheels may be bigger, but the overall diameter with the tire is about the same. The tires have shorter sidewalls. Pioneer is correct, you want the outer diameter of the rim and tire assembly to be the same so your speedometer is accurate. Also be aware that even though it seems to be the "in" thing low profile tires ride and wear like Quote Link to comment Share on other sites More sharing options...
igor Posted January 17, 2007 Share Posted January 17, 2007 (edited) larger and heavier wheels will kill your Fuel economy and acceleration, increase your braking distance, will be more prone to damage (to the wheel and tire) and more expensive to replace. Yes - the overall diameter of the wheel-tire combo will remain constant (close to it), but the larger wheel will not only weight more, it will place this weight further away from the axle exacerbating the effect of he weight itself - making the engine work way harder to spin that wheel than with 18" wheels (and it has 2 or 4 wheels to spin). Igor Edited January 17, 2007 by igor Quote Link to comment Share on other sites More sharing options...
ha paschold Posted January 18, 2007 Share Posted January 18, 2007 i m sure 20 inch tire s cost more than 18 " also.........20 s seem to wear much faster also.........by boss s 20 s on his surburban are starting to look like pototoe skins with barely 20k on them... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.