Tires . Which thinks that saves more fuel ?

[herberpower]

My car brings tires 175 / 65R14

I searched the lighter rims and found the opel corsa a gsi .

17,2 lbs (7,8 kg) 5j x 14 4x100 et47,5

carries four tires 185 / 60R14 Michelin energy + .

Two of the tires were bad. I've changed some 175 / 65R14 primewell ps880 .

175 / 65R14 is more popular.

I can save by switching the measure 165 / 70R14 ?

Do I best with 175 / 65R14 ?

[Baltothewolf]

Get Bridgestone potentza Re92's. 165/65R14. Best tire in terms of MPG by far.

[California98Civic]

Originally Posted by herberpower

...
I can save by switching the measure 165 / 70R14? Do I best with 175 / 65R14 ?

Try 165/70. Generally, narrower and taller versions of the same tire are considered better for fuel economy on this site. Some will disagree. Michelins are good. Bridgestones are good. I don't know of any completely current tests comparing LRR tires. I have Michelin Defenders on my car and love them, but the "Defender" name is probably not available in Spain.

[herberpower]

165 / 65R14

bridgestone re92 not find

I found :

bridgestone b250 F E 70 db

Bridgestone Ecopia EP150 C C 70 db

Michelin energy + C B 68 db

165 / 70R14

I found :

bridgestone b250 FE 70 db (it is difficult to find)

Michelin energy + C B 68 db

[RedDevil]

I think the 165/65 R14 are too small.
165/70 R14 are very slightly bigger than the original 175/65 R14s.

You may consider using 165/75 R14.
Those are available from Michelin and others and are 1 cm taller than the 175/65 R14s.

(cracking the numbers: )
The second number is the height of the sidewall as a % of tire width.
So 175/65 = 175 mm * 65% = 113.75 mm high.
165/65 = 107.25 mm, that's 6.5 mm lower than stock.
165/70 = 115 mm high, that's 1.25 mm higher.
165/75 = 123.75 mm high, that's a full centimeter more.

If you go for 165/75 R14s remember to add 3.3 % to your odometer readings, as those will display 3.3 % less than stock on those tires.
Likewise, the speed shown is less than stock; as speedos usually show a substantially higher speed than real, it will only become more precise.

[herberpower]

Originally Posted by California98Civic

Try 165/70. Generally, narrower and taller versions of the same tire are considered better for fuel economy on this site. Some will disagree. Michelins are good. Bridgestones are good. I don't know of any completely current tests comparing LRR tires. I have Michelin Defenders on my car and love them, but the "Defender" name is probably not available in Spain.

LLR tires nothing .

You can explicrme that is.

here's tire saving fuel.

It's the same ?

narrower versions need a higher profile. to have an equivalent diameter .

Is there much difference ?

175 / 65R14 and 165 / 70R14

previously used wheels with tires 175 / 70R14 .
consumption increased slightly.
It was better in the bumps.
was best at speeds of 90km / h ( 56 mp / h ) or higher. lower rpm . Less engine noise.

here in Spain and in Germany. are said to michelin tires are best. and that more lasting . are the more expensive price .

[RedDevil]

Those 175/70 tires have a 8.5 mm higher sidewall than the 175/65s.
So they were about 3% bigger than the 65s.
If you did not compensate for their size in the odometer readings, and you seemed to use 2% more fuel on them, in reality they were saving you 1%...

If 175/70 R14s were OK, then get the 165/75 R14; those are just a few mm taller.

[herberpower]

Originally Posted by RedDevil

Those 175/70 tires have a 8.5 mm higher sidewall than the 175/65s.
So they were about 3% bigger than the 65s.
If you did not compensate for their size in the odometer readings, and you seemed to use 2% more fuel on them, in reality they were saving you 1%...

If 175/70 R14s were OK, then get the 165/75 R14; those are just a few mm taller.

175 / 70R14 are 3% more than the 175 / 65R14 . and I can use them.

here allow a limit of + -3% in diameter.

165 / 75R14 is 3.5%. not allowed.

[California98Civic]

Originally Posted by herberpower

LLR tires nothing .

You can explicrme that is.

....

Sorry. "LRR" indicates "Low Rolling Resistance." Tires marked LRR in the USA are specifically for fuel economy.

James

[herberpower]

Originally Posted by California98Civic

Sorry. "LRR" indicates "Low Rolling Resistance." Tires marked LRR in the USA are specifically for fuel economy.

James

Here European tire label is used.