What will 20's do to my gas mileage? - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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Old 11-16-2012, 10:25 PM   #1 (permalink)
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Default What will 20's do to my gas mileage?

Ok, so I just picked up a 2011 6 last weekend. Like everyone else, I am already looking at new wheels & tires. lol Since I live in the mountains and get snow, I cant drop my car. I'll also have to wait until late Spring, early Summer before I can get these.
Anypoo, I like the way that 19's and 20's look on our cars, but Im not getting 19's becase of their price. I like the way 20's look, but dont know if I should go with them, or go to 18's. 18's look nice and all, but 19's and 20's look better.
Does anyone have any pics of their car with 20's and no drop? How bad will 20's affect gas mileage?
Thanks ya'll! Feel free to make fun of me all ya'll want! lmao
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Old 11-16-2012, 11:02 PM   #2 (permalink)
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20's wont effect your gas mileage really. As long as you get a tire that has basically the same circumfrence. Also, as long as the wheels dont weigh a whole lot.


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Old 11-17-2012, 03:29 AM   #3 (permalink)
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check out the vossen wheels, they look pretty cool
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Old 11-17-2012, 05:54 AM   #4 (permalink)
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Everything they said😁

I have 20" on my 6 now tire size is 225/35/20 but I think you can use 235/35/20 too...

[IMG][/IMG]


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Old 11-17-2012, 07:38 AM   #5 (permalink)
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The problem with wheel weight is that the lighter they are, the more expensive they are. Lol What weight do ya'll suggest I try to keep it under? Any suggestions on offset as well? Oh, and I really don't want to roll my fenders either. Damn, I just realized, I have a lot of criteria for my wheels. Lmao
Thanks for all of the quick replies guys! I'm sorry if I seem like a dumb ass newbie. I've never had nice wheels on a car before. I just about think 20's are too big. I would be happy with 18's, but like I said, in MY opinion, 19's look best. They're just so ridiculously priced. 18's and 20's are so common, they're pretty cheap.
JC, yours is lowered, right? It looks pretty good, but I couldnt lower mine. I would LIKE to, but it would bite me in the ass if I did. Coilovers would be the way to go in that case, but I cant afford them right now. (I'm in school) Do you have any pics of your car before you lowered it with the 20's?
::edit:: I JUST went and looked at wheel and tire combos for 20's. Every package shows a 245/35. Wont that rub even without being lowered?

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Old 11-17-2012, 08:00 AM   #6 (permalink)
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I like the Motegi MR117. It looks like a Rota knockoff. lol It's a 20x8 +42. Looks like it should be fairly light, if you can call a 20 "light." haha
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Old 11-17-2012, 09:18 AM   #7 (permalink)
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I would think that larger rims with more weight would hinder good gas mileage due to the fact that if they're heavier you're braking morer to bring the car to a stop since there's more rotating mass. From what I've heard braking is a big factor is getting better gas mileage, as in coasting helps instead of laying on the brakes, but if you have heavier rims you're on the brakes more often/sooner.
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Old 11-17-2012, 10:22 AM   #8 (permalink)
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I dont know if braking would affect gas mileage. It would affect the braking because the same brakes have to stop a heavier wheel. Gas mileage would be affected by maybe taking off too fast or the car having to keep a heavier wheel going at speed. At least I would THINK so.
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Old 11-17-2012, 11:33 AM   #9 (permalink)
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Heavier wheels, no matter what the size, affects the unsprung weight of the car. Acceleration will be negatively affected, as well as fuel economy, braking, and handling.

It's up to you to determine whether or not the added price of 20" wheels is worth keeping the weight down.
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Old 11-17-2012, 02:13 PM   #10 (permalink)
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I'm not worried about going fast in this car. It's a nice, comfortable car for me. I've had fast. This time I'm more concerned about looks.
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