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Load Range Index - Higher= better tires? #4667254
02/15/18 08:29 PM
02/15/18 08:29 PM
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Rolla07 Offline OP
Rolla07  Offline OP
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Hi all, I am looking at two identical tires (Nokian WRG3) in 195-65-15 size and I have 2 options:

195/65R15 XL 95H Weight of tire: 17.20 pounds
AND
195/65R15 XL 92H Weight of tire: 15.11 pounds

The weight of the tire is off a tire website, so unsure of its accuracy. Am I correct to assume the tire will be more durable if I buy the 95H model?
Difference in price is about 4$ per tire to have the 95H vs 92H. I am just curious to know how the tire is different. What does that 2 pounds go to? Sidewall strength/more plies?

The OEM tires have a load index of 86S or 89S, so either one of the above Nokians exceeds the OEM requirements. And yes for car in signature!

Thanks in advance!


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4667257
02/15/18 08:37 PM
02/15/18 08:37 PM
Joined: Jan 2008
Posts: 10,956
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,956
OH
I have some Nokian eNTYRES, 205/55r16s with a 94H load rating. The side wall is very stiff so next time I would want a lower number but at or slightly above the oem rating. Both tires have the XL rating also. In your case I'd go for the lower one so you don't feel like you're riding around in a truck.

Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4667258
02/15/18 08:37 PM
02/15/18 08:37 PM
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
More durable, more load carrying capacity, may have a higher sidewall PSI.

However if the size of the tire is similar to OEM then you should still run the door jamb PSI under normal conditions.

Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4667278
02/15/18 09:16 PM
02/15/18 09:16 PM
Joined: Oct 2002
Posts: 36,603
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline
Joined: Oct 2002
Posts: 36,603
Great Lakes
Originally Posted By: Rolla07
What does that 2 pounds go to? Sidewall strength/more plies?

Yes, better reinforced sidewalls/carcass.

Whether that's better for your particular application, I don't know. As the other poster noted, you might find them less comfortable to ride on if the sidewalls are stiffer.


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (PUP 0W-40 SRT)
Re: Load Range Index - Higher= better tires? [Re: Reddy45] #4667279
02/15/18 09:17 PM
02/15/18 09:17 PM
Joined: Sep 2015
Posts: 3,938
Connecticut
69GTX Online content
69GTX  Online Content
Joined: Sep 2015
Posts: 3,938
Connecticut
There are also 3 other factors in the tire rating. A's are better than B's or C's. I typically won't buy any daily driver passenger car tire with under 400 AB.

The UTQG rating system originated in the US as a way to help consumers make more informed tire-buying decisions. Tire manufacturers give their own tires a grade for treadwear, traction and temperature. Together, these numbers makes up a tire's UTQG rating—a three-digit number plus two letters. For example, 500 A A.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4667323
02/15/18 10:57 PM
02/15/18 10:57 PM
Joined: May 2012
Posts: 448
PA
faramir9 Offline
faramir9  Offline
Joined: May 2012
Posts: 448
PA


2005 Corolla LE, 1.8L
Valvoline MaxLife HM full-syn 5w-30
Continental TrueContact 195/65R15


Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4667411
02/16/18 05:48 AM
02/16/18 05:48 AM
Joined: May 2005
Posts: 10,547
ROCHESTER, NY
Char Baby Offline
Char Baby  Offline
Joined: May 2005
Posts: 10,547
ROCHESTER, NY
My OE Michelin MXV4(215-55-17 load 93V) also come in 215-55-17 load 94V. I will probably stay with the 93V for comfort. I guess it depends on what you want!


"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Load Range Index - Higher= better tires? [Re: faramir9] #4667475
02/16/18 07:22 AM
02/16/18 07:22 AM
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Rolla07 Offline OP
Rolla07  Offline OP
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Originally Posted By: faramir9
You sure one of them is not 185/65R15?
https://www.nokiantires.com/all-weather-tires/nokian-wrg3/


Hmm..tire website listed 2 195 options..but they may have made a mistake, seems logical for 185 to have lower index.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4667490
02/16/18 07:40 AM
02/16/18 07:40 AM
Joined: Sep 2008
Posts: 9,235
Ontario, Canada
IndyIan Offline
IndyIan  Offline
Joined: Sep 2008
Posts: 9,235
Ontario, Canada
Why would you go with an XL tire? I suspect they ride a bit closer to an LT tire and they are rough compared to a Passenger tire on our vans at work.
Also if they behave like LT tires, if your run them at lower pressures you lose mileage as well.


07 Focus ZXW, 5spd manual, 218km M1 5W30
18 Outback 2.5 CVT 15km 0W20
Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4667520
02/16/18 08:06 AM
02/16/18 08:06 AM
Joined: Feb 2003
Posts: 3,475
Somewhere in the US
CapriRacer Online content
CapriRacer  Online Content
Joined: Feb 2003
Posts: 3,475
Somewhere in the US
May be I need to clear up a few things:

The difference between an SL (Standard Load) and an XL (Extra Load) is basically the ability to withstand the extra inflation pressure and extra load. While the body plies and the steel wire belts will be a bit stronger, operating an XL under SL conditions doesn't appreciably change the way the tire performs.

HOWEVER, changing from an XL to Load Range C (or D or E), does - but not because of the difference in Load Range, but because LT tires use different formulations of rubber - in order to withstand the additional load.

Ya' see, rubber has a property called compression set - it is permanently deformed under excessive load. So rubber formulated for an LT tire has to have greater resistance to compression set than rubber for P type tires.

In theory, a P type tire could be made out of the same rubber used for LT tires - and the difference in performance would be virtually undetectable.

So to answer the OP's original question - assuming the weight difference is due to the difference between an SL and an XL (and not the difference is size), then there is no advantage to be gained by using an XL tire in place of an SL - and, Yes!, that weight difference would be in slightly stronger plies and belts.


CapriRacer

Visit my web site: www.BarrysTireTech.com
Re: Load Range Index - Higher= better tires? [Re: faramir9] #4667583
02/16/18 08:53 AM
02/16/18 08:53 AM
Joined: Oct 2002
Posts: 36,603
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline
Joined: Oct 2002
Posts: 36,603
Great Lakes
Originally Posted By: faramir9
You sure one of them is not 185/65R15?
https://www.nokiantires.com/all-weather-tires/nokian-wrg3/

Good catch!

It would not make sense for Nokian to make two different XL-rated 195/65/15 tires.

Here is one dealer offering:

https://www.tiresbyweb.com/p-11103-nokian-wr-g3-tire.aspx

I am only seeing one 195/65/15 tire.


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (PUP 0W-40 SRT)
Re: Load Range Index - Higher= better tires? [Re: Rolla07] #4668285
02/16/18 08:55 PM
02/16/18 08:55 PM
Joined: Jun 2003
Posts: 33,557
ME
eljefino Online content
eljefino  Online Content
Joined: Jun 2003
Posts: 33,557
ME
For whatever reason, the Champiro snow tires I bought in 195/65/15 are XL rated.

This was the only way they'd legally replace the 205s on my camry. Much cheaper, a super common size if I need a replacement, and 10mm skinnier to dig through the snow.

195/65/15 is or was one of the most common sizes out there.

I'd buy the XL tires because you'll also be running them in pothole season.


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