Mixing H and V rated tires - Mercedes-Benz Forum
 
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#1 (permalink) Old 07-29-2008, 06:08 PM
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Mixing H and V rated tires

I had to replace 2 tires last year and chose Conti CrossContact LX which are V rated. the time has come to replace the other two tires and the plan was to purchase two more Contis, however, it seems that every tire retailer in the US has those on back order. My second choice is the Goodyear Fortera which is H rated....
The vehicle is a 2005 ML500 which is being driven at speeds not even close to 130 mph (obviously...), so I am thinking that H or V does not really matter anyway.
What do the experts recommend?
TIA
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#2 (permalink) Old 07-29-2008, 06:12 PM
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I was told by several tire places to never mix speed rateings or tread pattern regardless of the way you drive.
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#3 (permalink) Old 07-29-2008, 06:13 PM
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I think as long as the load rating is the same, and the tread pattern similar, you should be O.K. I have never mixed tires but have never been in your predicament.

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#4 (permalink) Old 07-29-2008, 06:16 PM
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You will survive, assuming you are using it in moderate suburban conditions. There's far more risk driving on under-inflated, damaged, or bald tires.

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#5 (permalink) Old 07-29-2008, 07:01 PM
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There's no problem mixing V & H as long as you don't exceed the H ratings max speed. As for thread pattern, don't do that. Sometime a couple of years ago, I replaced the fronts on my Z with two tires I had sitting in my garage with very similar but different thread patterns - it was horrible and the next day they were gone. Driveability was so bad I couldn't believe it. Probably because these were Z rated summer high performance tires, but the handling took a dangerously frightening dive. Will same happen with the ML' size tires, I don't know but won't try to find out!

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#6 (permalink) Old 07-29-2008, 07:11 PM
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I agree with Musikmann and Darkman. You will have no problem as long as the only difference is H vs V on the tires you are mixing. And as long as you don't exceed the H ratings maximum speed.
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#7 (permalink) Old 07-30-2008, 04:51 AM
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The H & V tires he's considering are manufactured by a different company. What are the chances that he will find the same tread?
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#8 (permalink) Old 07-30-2008, 10:03 AM
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Thanks everybody for their input.

Bogie, one of the reasons I picked the Goodyears was that the tread pattern is very similar to the Contis. Another reason is the wear rating..they both are in the 600s, so I figure the compounds must be similar as well. Obviously, I would prefer to have the Contis all around...
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#9 (permalink) Old 07-30-2008, 10:19 AM
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Quote:
Originally Posted by Bogie View Post
The H & V tires he's considering are manufactured by a different company. What are the chances that he will find the same tread?
Slim, but not a problem if matched on same axle.

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#10 (permalink) Old 07-30-2008, 06:57 PM
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Quote:
Originally Posted by loanwolf;
Thanks everybody for their input.

Bogie, one of the reasons I picked the Goodyears was that the tread pattern is very similar to the Contis. Another reason is the wear rating..they both are in the 600s, so I figure the compounds must be similar as well. Obviously, I would prefer to have the Contis all around...
As much as I hate to say this, I'd look for a good pair of same tires, used. Go search on e-bay. I have been very successful going that route, but that's me and I usually know what I'm looking for!

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