Urgent v6 tire replacement advice

[saad5990]

so I went to dealership today for regular service,spoke with the service manager and told him that I feel little vibration on smooth road on highway sometimes so he offered me free tire change campaign and I said Okay without thinking now I have appointment with them tomorrow. So my question to V6 owners who have their tries replaced already, do you guys feel that the ride is more smooth or better should I do it or not plz advice.
Since we can't undo this after they replace.
New tires brand Continental all weather, also I'm in NY now and moving to TX next week is it worth doing it here or in TX idk if they are offering summer tires down there.

 

[ksoze]

New tires brand Continental all weather, also I'm in NY now and moving to TX next week is it worth doing it here or in TX idk if they are offering summer tires down there.

Huh?

 

[MK 19]

IMO, The two best tires you can buy would be the Pirelli P7 and the Continental True Contact. These two are the highest rated tires at Tire Rack in their categories. I have the P7's on both my Genesis and my wife's Sonata, they are truly great tires. Even though I live in SoCal I went with a All Season tire, the reason for that is that you can get a All Season tire with a far better tread wear rating then you can with a Summer tire.

 

[DRS]

Be advised, and this may not matter to you. Currently you have a car that has W rated tires. Which goes beyond 150mph rating. Once you get the new tires, they replace with H speed rated tires and reduce the speed limiter to 130mph... And the policy is never to turn it back up even if you buy W (or V or Z rated) later.. Again, this may not bother you at this time. Or, it might. You can get these replaced at a later date if you want to think about the change.

 

[saad5990]

Well I don't think so that I will ever drive more then 100 mph. Now question is if I ever go above 120-130 what's going to happen? Like will They lose traction or some thing?

 

[Midnightsun]

Now question is if I ever go above 120-130 what's going to happen? Like will They lose traction or some thing?

Technically they could come apart as in delaminate however they will be fine up to 130 sustained speed which they are rated for. That being said there are safety factors involved here and hitting 150 for a short period of time would probably be more than fine.

It is also important to note that any repair done to any tire voids the speed rating so if you intend on hitting 130+, it is important this is done with good condition, non repaired and properly inflated tires. For the rest of the normal world we need not ever worry about this even running with several plugs & patches.

 

[DFWGenny]

I live in DFW and I'm not changing them out. If it were me, and it's not, I would make the move and see how the tire perform in TX. In my opinion, the Michelin seems to be an inferior tire to the Hankook.

 

[GenesisCaptain]

Currently you have a car that has W rated tires. Which goes beyond 150mph rating. Once you get the new tires, they replace with H speed rated tires and reduce the speed limiter to 130mph... And the policy is never to turn it back up even if you buy W (or V or Z rated) later..

Do you have any additional information to confirm this? It sounds a bit shocking.

According to TireRack, the OE 18" Ventus S1 Noble2 is W rated; but the OE Michelin Primacy MXM4 is V rated. If they are using a V rated replacement tire, there would not be a need to materially modify the governor.

 

[DRS]

Do you have any additional information to confirm this? It sounds a bit shocking.

According to TireRack, the OE 18" Ventus S1 Noble2 is W rated; but the OE Michelin Primacy MXM4 is V rated. If they are using a V rated replacement tire, there would not be a need to materially modify the governor.

See tire replacement post that had copies of letters from Hyundai telling owners them of the top speed reduction when they got the new Michelin. Also, others posting showed H rated tires that are being replaced. I agree about your thought on V rated. From what pictures have been posted, that is not what is being installed.

 

[DRS]

Not sure if this will get you to exact location with picture of the letter and language. Should be close.

http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=15800&page=18

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[Comp1]

My Genesis is only 2 months old with about 1100 miles on the odo. My commute each day is 9 miles at very low speeds. The tires vibrate all but the last mile or so...probably warmed up at that point. If I run any errands at lunch I go thru the same thing. On my drive home in the evening same thing. So yesterday I drove over to the dealer at lunch and talked about the flat spots. The service writer took a few numbers off the tires and the manager came out and said he would will order the Michelin replacement or I could drive for a while on these and replace later. Since my commutes are so short I would rather have a smooth ride to enjoy the car. The speed ratings are meaningless to me. The autobahn is the only place to reach 100+ legally and that's not in my future. For me it is all about comfort. If you are looking for comfort change them. But V6 gets Michelins, not continentals so I would double check what you were told. V8 gets the continentals if I'm not mistaken.

 

[GenesisCaptain]

Not sure if this will get you to exact location with picture of the letter and language. Should be close.

Thanks for the reference. And that kinda sucks. My mom has a 2015 V6, and I am her car care adviser. The tire swap makes total sense, but there is the emotional side of losing the top end. Though, my last two cars were capable of much greater than 150 MPH, but they came from the factory governed at 130 because of the factory H rated tires. However, the same car with the sport package got V rated tires, so the governor was set at 150 on those. It is just simple economics.

 

[Mark_888]

Do you have any additional information to confirm this? It sounds a bit shocking.

According to TireRack, the OE 18" Ventus S1 Noble2 is W rated; but the OE Michelin Primacy MXM4 is V rated. If they are using a V rated replacement tire, there would not be a need to materially modify the governor.

Like most Michelin tires, the Primacy MXM4 comes in multiple speed ratings (H, V, or W) depending on the size, although some Primacy MXM4 tires come in 2 different speed ratings (H or V) for the same exact size.

For 2009-2011 the Genesis V6 Base trim came with 17" H rated tires, and the Premium/Tech Package had 18" V rated tires. I guess the governor "may" have been different for Premium/Tech package, but I would not be surprised if they were same as base trim governor.

I think it is important to have at least H rated tires, but the V and W ratings primarily affect handling (the tires are a little stiffer than H), and I can't imagine anyone doing sustained travel at a speed high enough to cause any concern. If someone is driving at more than 120 mph for long periods of time, they have a lot more important worries than tire failure.

 

[MagicRobert]

The new Michelins are V-rated. They don't even come H-rated in the correct size for the car. I have no clue where all the posters claiming H-rated came from. Great misinformation, guys.

Max speed is lowered by 20 mph by Hyundai from the original 150 mph.

The max speed is less than the V-rated max; the max speed cars for the W-rated tires is less than the max for W-rated tires. I added the info below. Car mfr's usually set speed limits at less than the max for the tire whatever ever the tire is. It's a liability issue. I have never seen any mfr do this differently.

From TireRack:
"Beginning in 1991, the speed symbol denoting a fixed maximum speed capability of new tires must be shown only in the speed rating portion of the tire's service description, such as 225/50R16 89S. The most common tire speed rating symbols, maximum speeds and typical applications are shown below:
L 75 mph 120 km/h Off-Road & Light Truck Tires
M 81 mph 130 km/h Temporary Spare Tires
N 87 mph 140km/h
P 93 mph 150 km/h
Q 99 mph 160 km/h Studless & Studdable Winter Tires
R 106 mph 170 km/h H.D. Light Truck Tires
S 112 mph 180 km/h Family Sedans & Vans
T 118 mph 190 km/h Family Sedans & Vans
U 124 mph 200 km/h
H 130 mph 210 km/h Sport Sedans & Coupes
V 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars

When Z-speed rated tires were first introduced, they were thought to reflect the highest tire speed rating that would ever be required, in excess of 240 km/h or 149 mph. While Z-speed rated tires are capable of speeds in excess of 149 mph, how far above 149 mph was not identified. That ultimately caused the automotive industry to add W- and Y-speed ratings to identify the tires that meet the needs of new vehicles that have extremely high top-speed capabilities.
W 168 mph 270 km/h Exotic Sports Cars
Y 186 mph 300 km/h Exotic Sports Cars"

In practical terms, the lower speed rating means that you can legally put V, or W-rated tires on the V-8 as replacements. On the V-6, you can put H, V, or W.

As far as tire ratings go, TireRack is very clear that the ratings are within Type of tire. You can't directly compare the replacement Continentals with the replacement Michelins as far as ratings. The UTOQ wear ratings are the same case; wear ratings are comparable only within type (and technically they cannot be scientifically be compared from brand to brand.

Can we at least get the basic facts straight?

Then everyone can have an opinion.

 

[ksoze]

The new Michelins are V-rated. They don't even come H-rated in the correct size for the car. I have no clue where all the posters claiming H-rated came from. Great misinformation, guys.

Relax on the lecture. Hyundai's letter to owners states the replacement Michelin's are a lower rating then the W rated OEM Hankook's. They refer specifically to a lower 130 MPH rating, which happens to correspond to an H rated tire. Maybe there is an OEM version of the MXM4 being supplied. Maybe someone with the new tires installed can clarify or supply a picture.

 

[MagicRobert]

And the 150 mph rating does not match a W-rated tire.

I thought I made this clear in the post. The speed limitations on the Genesis do not exactly match the top-speed of the tire class.

And no I won't go easy on the lecture.

Anyone who posts facts is helping. Whether you or I agree with their opinions is another matter.

This thread was started by someone who needed facts to help make a decision. Give the guy facts and if you have an opinion, don't state it as fact.

Several replies represented conjecture and speculation as being fact.

That does not help anyone.

I will be so glad when someone actually replaces the V6 tires, so we can have some intelligent discussion to add to the facts.

 

[ksoze]

Several replies represented conjecture and speculation as being fact.

Welcome to an internet forum. This speculation and opinion is compounded because Hyundai has been somewhat lean with information on this program, forcing speculation. As far as the OP, no one is hampering his quest for opinions.

 

[reddogva99]

edit

 

[awm]

The new Michelins are V-rated. They don't even come H-rated in the correct size for the car. I have no clue where all the posters claiming H-rated came from. Great misinformation, guys.

Max speed is lowered by 20 mph by Hyundai from the original 150 mph.

Quotes from Hyundai's tire letter to this V6 owner, offering to replace the Hankook tires with Michelin Primacy MXM4 tires:

..."These tires are speed rated for 130 miles per hour,..."

..."Please note that because the maximum speed rating is slightly lower (20 miles per hour less) than the original Hankook tires, we will aslo perform a minor update to your engine control computer, changing maximum speed of your Genesis from 150 to 130 miles per hour..."

I confirmed the "W" rating on the Hankooks currently on the car which means that they are good up to 168 mph. So it seems that Hyundai's letter is confusing their internally set safety margin with the actual tire ratings:

- Hankooks: "W"/168 mph rated vs 150 mph restriction by Hyundai
- Michelins: "V"/149 mph rated vs 130 mph restriction by Hyundai

Or they are indeed able to source "H"-rated MXM4s in which case the letter would still be inaccurate since the speed reduction would not be 20 but around 40 mph...

Anyhow, not a big deal for any of us in the United States except the few who take the car to the track...

 

[DRS]

Thanks for the reference. And that kinda sucks. My mom has a 2015 V6, and I am her car care adviser. The tire swap makes total sense, but there is the emotional side of losing the top end. Though, my last two cars were capable of much greater than 150 MPH, but they came from the factory governed at 130 because of the factory H rated tires. However, the same car with the sport package got V rated tires, so the governor was set at 150 on those. It is just simple economics.

Simple something. And bureaucrats who work at those companies think people do not notice. They do.. I agree with your point.. You are welcome. And thanks to the poster who put a image of the letter up.