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Discussion Starter #1
Hi, I just upgraded my newly bought (second hand) honda cr-v gen 4, 2015 to a 20inch mags from its original 17inch. The look was so cool and admirable however, when I drove through the highway and pick up a speed of 100kph, I noticed a loud engine noise, and strong road noise. I also noticed that my km/liter of gas have increased. Is this due to the change in the size of my wheel? Thanks in advance. Dan
 

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2016 CRV Touring AWD
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It might due to change in weight of the wheel and tire.
Driving in Sport mode will also do that.
Honestly my 16 Touring has 18 and virtually no sidewall. I can't imagine you have a sidewall any thicker than a rubber band.
So let's see photos!
 

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It might due to change in weight of the wheel and tire.
Driving in Sport mode will also do that.
Honestly my 16 Touring has 18 and virtually no sidewall. I can't imagine you have a sidewall any thicker than a rubber band.
So let's see photos!
I second request for photos!

EDIT: What wheel rim width and offset, and tire size are you running?
 

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Everything in Moderation
2006 CR-V EX, 5MT
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It is well documented that a heavier wheel (17" to 20") will cut your fuel mileage. More mass to get rollin'.

That said: x3 for pics!
 

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If km/l increased, does that not mean better fuel mileage? It would for miles/gal which is the same type of ratio: distance per volume of fuel.
 

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Discussion Starter #6
hi aluminated, thanks for your response, I should say, "the km/liter have decreased" and therefore petrol consumption for a shorter distance was the same as with longer distance.
 

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2016 CRV EX-L AWD
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It might due to change in weight of the wheel and tire.
Driving in Sport mode will also do that.
Honestly my 16 Touring has 18 and virtually no sidewall. I can't imagine you have a sidewall any thicker than a rubber band.
So let's see photos!
20" aren't that bad. I have 20s in my venza.

This one is the real deal rubberband tire. 315/20R30
https://m.youtube.com/watch?v=LuDhYMFOn7Y
 

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Wheel diameter has little to do with it. It's about the weight of the wheel. Just because it's larger doesn't mean it's heavier. Corresponding tire size and weight play a part as well.

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Do you have any before and after pictures?


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Thank you carbuff2. I shall be sending the pics later...cheers
First if you didn't keep the same aspect ratio your speedometer may be way off. Second going to wider tires will 100% decrease your fuel mileage. Also wider tires produce much more road noise.

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