A petroleum based rubber mounted on the wheels of vehicles to provide a higher friction coefficient between a vehicle and a road surface.

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2
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1answer
521 views

Will using a higher speed rated tire do anything for the car?

I heard that going down on the manufacturer's tire speed rating will affect the handling but will going up from an H to a V do anything such as increasing tread life.
8
votes
2answers
773 views

What could be a likely cause of unusual “torque steer” after repairs?

I have a 2012 Dodge Avenger SXT. Recently, I had a collision with an inanimate object which damaged my front-right tire and rim and also caused some very minor body & paint damage. Immediately ...
10
votes
1answer
179 views

How does tire pressure affect susceptility to hydroplane?

Is a tire's propensity to hydroplane proportional or inversely proportional to tire pressure? That is, if a tire is over inflated or under inflated, is it more or less likely to hydroplane?Edit: This ...
7
votes
1answer
333 views

Checking Tire Pressure when the tire is warm or cold

Witnessed a recent debate about what is the appropriate temperature to check tire pressure at. The debate centered around warm or cold, there wasn't an exact temperature given by any of the parties. ...
11
votes
1answer
82 views

Radial tires: Do they bulge at too high pressure?

It's tire pressure time! At least when looking at the recent new questions. So here is another question about air pressure. At driving schools, shops and in the internet you often find this type of ...
4
votes
2answers
195 views

What does the letter at the end of a tire code signify? [duplicate]

Take the following tire codes, for instance: 195/65R15 91 V 245/40R18 97 Y What does the "V" signify? What other letter codes are there?
20
votes
2answers
982 views

How To Read Car Tires

On my VW Passat B5 tires, there is a marking that reads "195/65R15 91 V". What does this mean? Do I have to get replacement tires with this exact marking on the side of the tire in the future or not? ...
13
votes
4answers
1k views

Should I fill my tire?

I measured the PSI on my rear driver tire (using a gauge pin - push it into the needle and a stick pops out with a reading), and I got a reading of 22 PSI. My tires are supposed to be anywhere from 30-...
5
votes
3answers
3k views

Which tire pressure is right for my 2008 Toyota Yaris's front tires?

A few months ago, my tire pressure dashboard light came on after I bumped a curb a bit with my 2008 Toyota Yaris's rear right tire. I drove to a gas station and tried to pump up my tires, but the ...
5
votes
3answers
932 views

Where can a tire be leaking if no nail/screw?

One of my tires leaks from 32 psi to down below 25 psi in less than a day and it's not due to a drastic temperature change. I took the wheel off to inspect for nails/screws and couldn't find any. ...
13
votes
2answers
167 views

Cold temperatures and tire pressure light

I have 2013 Nissan Rogue. I live in Toronto, Canada, so it is very cold here right now. I understand that cold temperatures can cause the tire pressure light to come on, but will it actually affect ...
1
vote
2answers
840 views

Filling nitrogen tires with normal air

I have 2014 sonata with nitrogen tires (the tires air port has a green cap on them). I think two tires need a little air. If I put regular air in these is the car gonna blow up? Or should I take the ...
11
votes
4answers
17k views

How to diagnose high speed vibration?

I get a vibration at high speeds (50+), can feel it particularly in the steering wheel, front seats, dashboard. I have been trying to figure out what's going on, keeping in mind that: All 4 shocks ...
2
votes
3answers
3k views

Can I use a different size donut spare tire for my 97 Accord?

My 1997 Honda Accord came with a 115/70/14 donut spare tire. I had to use it for the first time recently, and it is now totally dead and needs to be replaced. I looked on Ebay and there are a few ...
5
votes
1answer
113 views

Is there such a thing as a “drive tire”?

I once went to get my tires replaced on my '03 Honda Accord after not having rotated them in a while. One of the front tires seemed to be more worn than the other front tire. An employee at the tire ...
4
votes
1answer
51 views

Wheel Positioning - Camber and Toe

I have a baseline of information regarding camber and toe. Why would I add more or less camber to my wheel unless I'm a NASCAR drivier making only left hand turns and want better traction for that ...
6
votes
1answer
101 views

Motionless car with tire spinning on ice causes burning rubber smell?

I live in New England, where "Winter Wonderland" often involves large amounts of ice on the road. A number of times I've had to help someone get their car out of a parking spot where their drive ...
3
votes
1answer
54 views

One tire worn 1mm more, what are the chances of an alignment problem?

When recently changing my summer wheels to winter wheels on a front-wheel drive car, I noticed that the summer tire on the front right had only 4mm of tread left whereas all other tires had 5mm of ...
4
votes
6answers
31k views

Will different tread depths hurt my 4 wheel drive?

I have a Ford F150 4x4. The front 2 tires treads measure 12/32, one rear is 6/32 and the other is 10/32. The dealership told me I should replace the rear 2 tires because the big difference in tread ...
4
votes
2answers
150 views

Plugged tire, should I patch it if it holds air or I'm ok?

Found a small screw in my rear winter tire, like real small and thought it wouldn't leak, but it did, so I plugged it. It holds air correctly. Two questions: Some people freak about plugging/...
4
votes
3answers
71 views

I just patch my tire what's next

I just took my car to the tire shop to patch a tire that kept deflating very slowly. Do I need to get and alignment and balance ?
2
votes
1answer
122 views

Calculate tyre pressure of a car from OBD parameters

I want to calculate the tyre pressure of a car from OBD parameters. I don't want to take TPMS or any custom PID for this. One of the indirect method is the calculate: ((w_LF + w_RR) - (w_RF + w_LR)) /...
4
votes
1answer
273 views

Do I follow the same recommended tire pressure when I change to nitrogen filled tires?

I am aware of the recommended tire pressure indicated in the car's user manual and in the driver's door. I've been reading a lot about filling tires with nitrogen and a few of the advantages has ...
4
votes
2answers
62 views

Tire Pressure Adjustments When Needed

From my understanding there is the recommended tire pressures at the inner part of the drivers door, but I have this question in my head just in case this happens. Say my recommended tire pressure ...
3
votes
2answers
210 views

My brand new car is shaking while steering wheel is not

I have bought a brand new Dodge Ram 1500 2015 model. The car is shaking at low speed 80km/hr (50 mph) while the steering wheel is not shaking. I can feel the vibration in the seats, however the ...
3
votes
1answer
66 views

Dealer put on a different tire than the rest, is this bad?

I got a flat a few days ago and took it to the dealer to be fixed. He asked if I wanted the same tires and I said yes. I just got it back yesterday, and saw today that it is not the same tire. My ...
4
votes
3answers
151 views

What non-driver, non-terrain factors can affect vehicle miles per gallon?

I've been tracking the mileage on my 2015 VW Golf (a non-intercooled turbo, but not diesel, thank goodness). Of course, my driving habits and highway/city balance influence things greatly, but beyond ...
4
votes
2answers
520 views

What could be causing the rapid loss of tyre pressure?

I had a slow puncture a while ago and got the tyre replaced on my Renault Clio because it was bulging and non salvageable. Since then I've been losing pressure in that tyre fairly rapidly. I've had ...
3
votes
3answers
3k views

Is it advisable to upgrade/downgrade tyres of Hyundai Santro Xing eRLX to 145/70 R13 from 155/70 R13

I've a Hyundai Santro Xing eRLX car and currently it has 155/70 R13 tyres on four wheels and all tyres almost crossed 40000kms. I've recently replaced both front tyres with brand new tyres. I've two ...
1
vote
2answers
73 views

Tires for a Opel Vectra 2003

Im searching for tires for my car which is a Opel Vectra 2003 (this car is also known as Vauxhall Vectra, Holden Vectra, Chevrolet Vectra) I cover a lot of road in a year. I do at least at least ...
3
votes
3answers
90 views

My tire wobbles

At slow speed one of my front tires on my 2000 Grand Am SE 4 door wobble, but feels fine at a higher rate of speed. Was told by a person at a tire store my tread is breaking loose and I need a new ...
2
votes
1answer
72 views

Should I inflate tires that are low pressure from freezing weather?

The PSI inevitably drops in tires during cold weather. Today, I'm getting a low pressure warning because of the freezing temperatures. Should I inflate them while it's still freezing? If so, how ...
0
votes
0answers
18 views

Ecopia's (3) Pirelli (1) [duplicate]

I had 4 Bridgestone Ecopia's on my new car. Blew a rear tire on the Interstate in the middle of nowhere. Put on the mini spare and found a dealership - 30 miles away. They couldn't or wouldn't help me(...
0
votes
1answer
27 views

Winter tyre sizing

Is it possible / safe to use winter tyres of 195/50R15 on a golf currently fitted with 205/55R16? My son changed his car and tells me if he gets his winter tyres fitted to different rims because if ...
2
votes
1answer
71 views

Tire depth is 4, is it safe to drive?

when took my car for oil change, mechanic said that the tire Threads are too thin to drive , less than 5. So it is not safe to drive. Till what depth we can drive the car safely. Tires also has some ...
1
vote
1answer
60 views

How to choose Car Tyre Pressure Monitor Valve Stem Cap Sensor Indicator

I would like to fit Car Tyre Pressure Monitor Valve Stem Cap Sensor Indicators to my Skoda Citigo, where the cold tyre pressure is supposed to be 26 p.s.i. There is a wide range of these available, ...
0
votes
1answer
56 views

All 4 tyres for Santro Xing 145/70/ R17 can be used instead of original 155/70/R17 tyre size

I have new 4 tyre size of 145/70/R17, can I use these tyres instead of 155/70/R17 original tyre size. I will replace all 4 tyres with new tyres. Is it recommended. Shall I face any technical problems ...
6
votes
5answers
69k views

Why do some tuned cars have very inclined tires?

I've seen photographs of cars with strange inclined tires like the one in the picture I pasted here. They seems to be Japanese cars. Is it for drifting? Maybe for appearance? Do the tires get ...
5
votes
2answers
125 views

Sidewall has gashes, should I replace?

I had planned to put on my winter tires this weekend and noticed that one tire had some gashes in the sidewall. Should I mount them or not? The third picture, is the worst IMO. They still have a few ...
4
votes
2answers
18k views

Does tire size and/or tread wear significantly affect speed and speedometer accuracy?

I've always heard that tread wear affects the speed of your vehicle; i.e. you technically are going faster with new tires than you are with old, worn tires, for a given indicated speed by the ...
3
votes
1answer
49 views

I have changed my Kia Carens tire size

I have changed my Kia Carens tire size My original car Kia Carens tire size was 225/45 R17 (total Diameter 25") I changed the front tires to 225/50 R17 (total Diameter 25.9") Difference 3.6% And ...
1
vote
2answers
108 views

tire bubble on audi [duplicate]

I have an Audi Quattro with 29000 miles on the tires. One has developed a bubble and tire shop said I need to replace all 4 because of 4 wheel drive could damage differential. Is this true?
4
votes
2answers
437 views

After putting on new winter tires, my steering is weak/light

I just had new winter tires put on my 2003 Honda Civic 4-door LX. The steering has been affected. The steering now feels "weak" or "light" or "loose". Meaning I now have to turn the wheel further to ...
3
votes
1answer
256 views

Tire damage from mounting/unmounting, normal?

A mechanician that I know told me that the damage on the inside lip (extra rubber inside, not the bead) of the tire like the image below is normal and often happens when mounting/unmounting tires each ...
1
vote
2answers
77 views

Replacing a single tire [duplicate]

Is it safe to replace a single tire on the front axle and if yes should the new tire be moved to the back? We replaced a front right tire, after picking up a screw. Now we hear that it's not safe to ...
1
vote
1answer
50 views

Is there a tyre pressure gauge that is easy to use?

I always lose air from a tyre when I try to use one of the type of pressure gauge that depress the pin in the valve as the gauge is attached, so I have to pump it up whether or not the pressure was ...
3
votes
1answer
81 views

Can I disregard the sticker on my sparewheel?

This week I got a flat tire. I replaced the tire with my spare one. Since I own a Volkswagen the spare is a full size tire. The spare have a sticker on it that say don't go over 80km/h (50miles/h). ...
7
votes
4answers
2k views

I damaged 1 rim. Should I replace 2 rims?

I hit a rock and it destroyed my tire and damaged the (steel) rim. Should I replace 2 rims (matched pair), or is it ok to replace just the one damaged rim? Is the car going to be balanced? It is the ...
3
votes
1answer
62 views

Should I be concerned about a very slow leak in a patched tire?

Brand new tires, within a couple weeks after purchase I ran over a screw, and had to get one tire patched. Now, after the patch, the tire loses about 4 psi per week. It's a very slow leak and I've ...
13
votes
4answers
3k views

Is a tire with exposed wire safe to drive on?

This is my front passenger tire. As you can see, there is a large crack where you can see wire underneath. I ordered new tires that are supposed to arrive on Friday, however, I still need to get to &...