Wider tires caused more fuel consuption?

[BeCool]

Hi All the Sifu,


As per above title, is it true that wider tires causing more fuel consumption?

Like 195/50/R15 ---> 215/50/R15

Will this cause higher fuel consumption?

 

[nadziad]

maybe yes maybe not...it depended on ur right foot....i think abit higher consumption than usual la

 

[LesleyAprotto]

You are changing from 195 to 215 width, meaning a 2 size increase...

Meaning more resistance on your rolling momentum, thus needing more power to move meaning a slightly
more fuel consumption...

However, you may minimise it by increasing the tyre pressure by 2 or 3 psi

For example you are using tyre pressure of 31psi, you may up it to 34psi but before doing it,
you got to check the tyre pressure recommended by the car manufacturer or the tyre manufacturer...

 

[BeCool]

ic, Thanks for the info ya!

 

[DanzEterna]

i dont it will increas FC......but better traction though.

 

[aHLengChai]

increase aqua planting (betul ke eja?) haha

 

[DanzEterna]

aqua planning.....not really unless your tires are bald la.....

 

[vr2turbo]

Hi All the Sifu,


As per above title, is it true that wider tires causing more fuel consumption?

Like 195/50/R15 ---> 215/50/R15

Will this cause higher fuel consumption?

You are looking at the width only. By going 20mm wider without reducing the aspect ratio meaning the 50 series the 215/50 have increase your diameter by 3.37% and this will surely increase your FC as your car have to drive a larger diameter wheel. However you can try 215/45R15 but I don't think there is such a tyre size.
Alternative sizes for upgrade is 205/50R15 and/or 205/45R16.....

 

[DerrickEe]

Recently changed my tyres from 155/70/r12 to 165/55/r14. Car feels heavier during take off. As for FC,it worsened,but only slightly...

 

[nadziad]

the bigger the rims the heavier the are...unless ur using 2 pice or 3 piece rims...hahha

 

[DerrickEe]

Not to forget I'm using stock Myvi SE rims on my 0.8cc Viva,which is much heavier than stock steel rims. Oops,totally forgot about the rim diameter and weight. My opinion is,I dont think FC will worsen badly though

 

[DaBaD]

Have change from 215/50/16 to 265/35/19
No change in fuel consumption

 

[malowar]

imho, it depends on what car u r driving, type of rims, etc.

based on my exp, from stock 175/65R14 to 195/55R15 :

1. for vios 1.5, no issue of heaviness perhaps due to higher cc, fc slightly affected but negligible
-- pumping 34 psi on all 4 tyres

2. for myvi 1.3, feels a bit heavier during starting & acceleration, fc slightly more affected but negligible also
-- if myvi 1.5 should be no issue
-- pumping 34 psi on all 4 tyres

for myvi next change, perhaps will consider downgrade to 185/55R15 or 195/50R15

 

[6UE5t]

You are looking at the width only. By going 20mm wider without reducing the aspect ratio meaning the 50 series the 215/50 have increase your diameter by 3.37% and this will surely increase your FC as your car have to drive a larger diameter wheel. .....

Yes this is correct. Don't just look at the width and assume the overall rolling diameter stays the same. The 50 profile is % of the width, so if you increase the width and still maintain the same profile, then you'll also increase the diameter. By increasing both aspects like this, then surely will consume more fuel. As to how much, not sure but I think will be noticeable.

 

[dyii95]

how about this.. Iron rims 195/70/R13 to Rays TE37 replica 215/45/R16.. will it increase?

 

[6UE5t]

how about this.. Iron rims 195/70/R13 to Rays TE37 replica 215/45/R16.. will it increase?

The total diameter is almost the same, so which one is heavier as a total package?

 

[vr2turbo]

how about this.. Iron rims 195/70/R13 to Rays TE37 replica 215/45/R16.. will it increase?

What tyres are you using with size 195/70R13? Largest in 13" 70 series I have seen is 185/70R13.
And 215/45R16 also very rare. If not mistaken mostly in extreme tyres

---------- Post added at 09:36 PM ---------- 6 hour anti-bump limit - Previous post was at 09:33 PM ----------

Recently changed my tyres from 155/70/r12 to 165/55/r14. Car feels heavier during take off. As for FC,it worsened,but only slightly...

Could be due to rims and tyre weight because your conversion size is actually smaller in diameter...

---------- Post added at 09:39 PM ---------- 6 hour anti-bump limit - Previous post was at 09:36 PM ----------

Have change from 215/50/16 to 265/35/19
No change in fuel consumption

Wah! 7% bigger in diameter no difference in FC, moreover the tyres can go in your wheel arch?

 

[6UE5t]

...

Wah! 7% bigger in diameter no difference in FC, moreover the tyres can go in your wheel arch?

Maybe his rims are those super expensive ultralight forged magnesium/carbon kind of stuff!
So despite much larger diameter, overall still much lighter than stock.

 

[vr2turbo]

Maybe his rims are those super expensive ultralight forged magnesium/carbon kind of stuff!
So despite much larger diameter, overall still much lighter than stock.

ha! ha! but still 7% bigger woh! Wonder what ride got so much wheel space? Power to drive?

 

[arturo]

theres a reason y solar powered racers use sotong tyres...

so by logic when increasing tyre width/thickness/overall diameter, FC will suffer. question is by how much.

moreover, wider tyres = more unsprung weight. unless yr using SUPER light weight rims which offsets the extra weight of more rubber.

moreover 2, bigger diameter tyres even at same weight will still affect FC as it takes more energy to get the larger diameter tyres to spin...imagine BMX bike vs mountain bike...even at the same weight...it takes less effort to start spinning the BMX bike tyre compared to the mountain bike tyre.

thats just my pasar malam logic.