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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9
votes
5answers
640 views

Cheap tyres on rear of car?

I've bought a car with two worn rear tyres (still legal, but between 3 - 4mm of tread left, so will need replacing soonish) and two brand new (but cheap off brand) tyres on the front. I'm wondering ...
10
votes
1answer
161 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 ...
12
votes
1answer
93 views

What is cold tire shearing?

I have friends that goto Track Days frequently on their motorcycles. If the first session is very cold they use their old tires and don't ride real hard because they don't want to shear their good ...
10
votes
1answer
66 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 ...
7
votes
1answer
198 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. ...
6
votes
3answers
354 views

How To Pump Up Car Tires (finding the optimal PSI for your tires)

I have noticed that all the tires on my VW Passat B5 have "44 PSI" written on them except the spare that has "51 PSI". This seems incredibly high to me so when I filled them up recently at the petrol ...
8
votes
1answer
116 views

Tire Speed Rating Naming Convention

According to an answer on this page the speed ratings that can appear on the end of a tire specification (like "195/65R15 91 V") include almost all of the letters of the alphalphabet in almost the ...
4
votes
2answers
182 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
974 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 ...
13
votes
2answers
149 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 ...
6
votes
1answer
373 views

Transmission damage due to uneven tread wear on AWD vehicle

I have a 2013 Subaru Impreza with a continuously variable transmission with ~40k miles on it. About two months ago I blew out the front right tire and took it to a tire shop. The folks at the tire ...
6
votes
1answer
97 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 ...
4
votes
1answer
50 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 ...
3
votes
1answer
48 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
2answers
120 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 ...
4
votes
3answers
60 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
111 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
262 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
56 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
179 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
63 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
150 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
517 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 ...
5
votes
1answer
112 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 ...
2
votes
1answer
67 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 ...
6
votes
1answer
76 views

What precautions should I take when using snow chains?

I have purchased some snow chains, but the manual provides fitting instructions, and it only says to remove them when the road is completely clear of snow, and never drive faster than 40mph (about ...
0
votes
1answer
26 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 ...
1
vote
1answer
52 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
53 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 ...
2
votes
1answer
67 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 ...
-6
votes
2answers
113 views

How can I change the sound of my tires? [closed]

Earlier this evening, I locked up my car's brakes reacting to a wrong-way bicyclist. My tires generated a respectable cloud of smoke, but to my disappointment, the sound they produced was a dull ...
5
votes
2answers
113 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 ...
1
vote
2answers
105 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?
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 ...
3
votes
1answer
189 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
70 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 ...
4
votes
2answers
398 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 ...
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
74 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 ...
3
votes
3answers
122 views

Brown splotchy stains on my tires

I got brand new tires in April. In July they started growing unsightly brown stains. Even after I wash them the stains reappear within hours. Kind of annoyed because they were hella expensive and they ...
5
votes
3answers
432 views

Are recommended tire pressures the same for non-stock tires?

This post on the TireRack blog http://blog.tirerack.com/blog/docs-advice-on-tires/what-is-the-best-tire-pressure-for-my-new-tires recommends that tires be inflated to the vehicle manufacturers ...
3
votes
2answers
161 views

Mechanic says that I must change tires with him before he will rotate them. Why?

I got an internet combo-deal to change oil and rotate tires at a shop in Sunnyvale, CA. However, now mechanic called me back and is telling me that I have to change all four tires due to the wear. ...
3
votes
2answers
197 views

Will power-steering while stationary cause greater tire and steering wear?

I learned to drive in small cars with no power steering. As such, I have a good feel for how much more effort is required to move the steering when stationary, as compared to moving. The ability to ...
2
votes
1answer
182 views

Can dry rot be prevented for long term storage?

The last time I saved a good tire and gave it to the tire place to replace one of my other tires, they said they couldn't due to dry rot. I had stored it in a plastic bag in a shed subject to seasonal ...
1
vote
1answer
42 views

What are the original tires for the 2002 Honda Accord SE? Any place for me to check?

For example, the brand and size. Is there any place for me to check what the original tires which come with the car are? I live in Canada and whenever I search it on Google the links lead to ...