Fuel consumption with tire size

[rion]

let say we have mitsu adventure with R14 195 tires or R14 205 tires.

same grip/design and psi.

will the 205 (wider) consume more fuel?

[JMV]

Theoretically, yes higher fuel consumption.. the wider tires will have more rolling resistance.
How much? ... it will be more but the level maybe almost the same (not much / significant).

FYI.. here are some pros and cons for wider tires
Pros:
- Better handling
- Aesthetically better

Cons:
- Higher road noise
- Higher fuel consumption

Well, I still stand to be corrected.

[niky]

Tama. It might not be statistically significant.

[rion]

I see, thanks po.