Tyre Care and Safety Technology Environment Rich Value Chain Indian Tyre Industry cruising on growth highway Tyres for all needs


  • Q1. What are road hazard injuries?

    Ans. Road hazard damage is damage that occurs when a Tyre fails as a result of a puncture, bruise or break incurred during the course of normal driving on a maintained road. Nails, glass and potholes are the most common examples of road hazards. Avoid running over objects (e.g. chuckholes, rocks, curbs, metal, glass, etc.) which may cause internal Tyre damage. Internal damage, not visible without demounting the Tyre, may be caused when a Tyre runs over an object. Continued use of a Tyre that has suffered internal damage (which may not be externally visible) can lead to tyre burst. Determination of suspected internal damage requires demounting the Tyre from its rim and examination by a trained Tyre personnel.
  • Q2. What could be the cause of my Tyres making a loud noise?

    Ans. Noise is most commonly due to an uneven or irregular wear pattern that has developed on the Tyres. Sometimes Noise could be a perception or feeling one may perceive especially after changing to a new set of tyres. Also could be due to poor / heavy repair, separation in tread/ belt area. It may also be caused due to wrongly mounted directional / specialized tyres. Vehicles traveling on different roads (concrete/asphalt/mud) also make different noise.
  • Q3. What is Cupping?

    Ans. Cupping can be attributed to bent or worn suspension parts, wheel misalignment, an imbalance of the Tyre/wheel assembly, etc. Once this type of wear pattern has occurred, it is irreversible and the Tyres will continue to wear unevenly.
  • Q4. What should I do if my Tyres wore too fast?

    Ans. Inspect for following:
    • Tyre maintenance (inflation and rotation)
    • Vehicle maintenance (alignment and suspension)
    • Defective braking system can also result to fast wear
    • Driving styles and habits
    • Topography of the area the vehicle is driven in
    If still problem exist, contact tyre dealer/Tyre manufacturer.
  • Q5. What should I do if my vehicle is pulling to one side?

    Ans. Incorrect alignment settings can adversely affect handling. Tolerable camber, caster and toe settings can be verified by a print-out from your alignment/Tyre shop or vehicle dealer. Check for unequal tyre pressure, brake system. If the Tyres are evenly worn, the alignment is in order and there is still a pull, the front Tyres should be criss-crossed (as long as they are not a directional tread design) to see if the pull changes directions. This should be performed by authorised dealer.

    Others reason for pulling may be:
    • Front tyre OD variation
    • Pulling may be due to defective suspension system
    • Jam of Braking shoes
    • Unequal braking forces at different wheel (left side vs. right side)
    • Different tyre pattern / different worn out tyres / different size or aspect ratio put on left side vs. right side
  • Q6. What should I do if the cords on my Tyres are visible?

    Ans. Cord material may become visible at the base of tread grooves or slots due to under inflation, over inflation, misalignment, loose/worn suspension components, hard cornering, improper Tyre rotation practices, misapplication, high crown road or non-uniform mounting. A Tyre exhibiting this condition should be permanently removed from service.
  • Tyre Replacement

    Q1. How many years we can use tyres from date of production?

    Ans. Road worthiness and usability of tyres depend on many factors. Some of them condition of tyres, tread wear conditions, free from damages and injuries. Tyres are to be removed as soon as the tread depth worn up to Tread Wear Indicators. If tyres are stored and maintained properly as per the recommended practice it can be used four to five years from the date of manufacture.
  • Q2. Is there a way to tell when I need new Tyres?

    Ans. Tread wear indicators ("wear bars") are located at the base of the main grooves and are equally spaced around the Tyre. The tread wear indicators, which look like narrow strips of smooth rubber across the tread, will appear on the Tyre when that point of wear is reached. When you see these wear bars, the Tyre is worn out and it's time to replace the Tyre. Always remove Tyres from service when they reach a remaining tread depth of 1.6mm tread depth.
  • Q3. Can I mix Tyre types on my car? (Radial & Bias)

    Ans. For best all-around performance, the same type Tyre should be used on all four-wheel positions. Tyres of different size designations, constructions, and stages of wear may affect vehicle handling and stability.
    NOTE: Some vehicles are intentionally fitted with different size Tyres on front and rear.
  • Q4. Can I replace the Tyres on my car with a lower speed-rated Tyre?

    Ans. When replacing speed-rated Tyres, you must use replacement Tyres with ratings equal to or greater than those of the original equipment Tyres, if the speed capability of the vehicle is to be maintained. The handling of a performance vehicle may be different when the replacement Tyres are not the same speed rating. Refer to the vehicle owner's manual to identify any Tyre speed rating restriction that could affect operation of the vehicle.
  • Q5. Do I have to replace my present Tyres with the same size Tyres?

    Ans. Never choose a Tyre that is smaller in size or has less load-carrying capacity than the Tyre that came with the vehicle. Tyres should always be replaced with the same size designation — or approved options — as recommended by the vehicle or Tyre manufacturer. The correct Tyre size can be found on the door placard of the vehicle or by consulting your local authorized retailer. Your current Tyre size can be found by reading the markings on the sidewall. For upsizing, one needs to keep in mind the below conditions:
    • The Load &speed indexes should be equal or greater than the OE fitment
    • The overall diameter of tyre replacement should be within the range of -2 to +1.5% overall diameter of the OE fitment size
    • Replacement tyre should not touch any vehicle parts stationary or during use (to be confirmed upon fitment)
    • In case of changing wheel size, always prefer to stick to OE fitment or maximum of 1 inch in diameter.
    Contact your vehicle maker for their recommendation.
  • Q6. What guidelines should I follow when mixing Tyres on 4WD vehicles?

    Ans. If no instructions for Tyre mixing appear in the vehicle owner's manual, adhere to the following guidelines:
    • Do not mix sizes. All four Tyres must be branded with the same Tyre size.
    • Do not mix radial and non-radial Tyres. All four Tyres must be either radial or non-radial.
    • Do not mix tread pattern types such as all-terrain and all-season.
  • Q7. Where do I install new Tyres if I only buy two?

    Ans. It is recommended to replace all four Tyres at the same time, however if replacing only two new Tyres, be sure that the new Tyres are the same size & Tyre type as the current Tyres and that the dealer always installs the new Tyres on the rear axle of the vehicle. The New Tyres will provide better wet grip than your half-worn Tyres. Fitting new tyres on rear axle helps in avoiding oversteering condition during cornering. It will help reduce the potential for the vehicle to fishtail and lose stability in wet conditions.
  • Q8. What is the shelf life of a car tyre and a truck tyre?

    Ans. If tyres are stored and maintained as per recommended storage conditions approximate shelf life of tyre is five years.
  • Q9. Do you recommend Used Tyres?

    Ans. Avoid used Tyres - you can never know what hazards and abuse a previously owned Tyre has suffered. Internal damage can lead to dangerous Tyre failure.
  • Q10. Can I mount my own Tyre on the wheel myself?

    Ans. Never try to mount your own Tyres. Tyre mounting is a job for the people who have the proper equipment and experience. If you try to do it yourself, you run the risk of serious injury to yourself as well as possible damage to the Tyre and rim.
  • Tyre Care and Maintenance

    Q1. Do my driving habits affect the life of my Tyres?

    Ans. Yes. Here are several tips to help increase the life of your Tyres:
    • Don't over speed. High speeds can generate excessive heat, which can increase the rate of Tyre wear. Drive the safe, legal speed limit.
    • Avoid fast turns on curves and around corners.
    • Avoid fast starts and panic stops.
    • Don't ride on the edge of the pavement or drive over curbs, potholes, or other obstructions.
  • Q2. Do my new Tyres require special treatment?

    Ans. Special treatment is not required for your new Tyres. However, drive carefully while you get accustomed to them. You may feel a difference when accelerating, braking, and cornering or possibly driving in wet conditions.
    When we inflate new tyre assembly, tyre has tendency to expand and so air pressure drops slightly within 2 days of fitment so we have to take recheck the inflation pressure once again after 2 days of fitment.
  • Q3. How do I take care of my new Tyres?

    Ans. Properly maintained Tyres can help give you a more comfortable ride and a longer tread life. So:
    • Check your Tyre pressure periodically with a Tyre pressure gauge (and make sure the Tyres are cold—at least 3 hours after driving or within 2 km of initial use).
    • Check your Tyres frequently for any cuts, snags, punctures, any other injury, or irregular Tyre wear.
    • At the first sign of irregular tread wear, have your alignment checked.
    • Make sure the Tyres are balanced when they are mounted on the wheels.
    • Rotate your Tyres following the schedule in your vehicle owners manual or as required by the Tyre manufacturer's warranty.
  • Q4. How long should my original equipment Tyres last?

    Ans. Due to the variety of styles, construction features, tread compounds, vehicle applications, geographical conditions and driving habits, it is difficult to provide a specific mileage expectancy.
    Usually the first replacement tyres last lesser than the OE Tyres even if you go for the same make, size and pattern. The reason is that when the first set was used, each part of vehicle was new, for second set, each part would have some wear and tear. Same holds true for wear life for third set which would be lesser than second set of tyres. However, any Tyre wear concern should always be presented to your local authorized dealers for further evaluation.
  • Q5. Is there a time period on breaking in my new Tyres?

    Ans. New Tyres have to be driven a few hundred Kms on dry roads to rid the tread of parting agents and antioxidants applied during production. Not until the tread has been slightly roughened will the Tyre be able to make its true gripping power felt.
  • Q6. Should my Tyres be balanced?

    Ans. Proper balancing is critical for optimal vehicle performance, especially at today's higher highway speeds. When Tyre and wheel assemblies are unbalanced, a vibration can result from wheel and assembly shimmy (shaking from side to side) or wheel assembly tramp (Tyre and wheel hopping up and down). Therefore, it is important that these assemblies are in both static and dynamic balance.
  • Q7. What air pressure do you recommend when using an Optional Tyre size?

    Ans. When installing a different size than the original equipment Tyre, all vehicle manufacturer specifications must be maintained. The replacement Tyre should be inflated to provide the same load capability of the original Tyre size at the manufacturer's recommended pressure.
  • Q8. What is proper alignment?

    Ans. A vehicle is said to be properly aligned when all suspension and steering components are sound and when the Tyre and wheel assemblies are running straight and true. Proper alignment is necessary for even tread wear and precise steering. Uneven front or rear Tyre wear, or changes in your vehicle's handling or steering response (i.e. pulling to one side) can indicate misalignment. Some vehicles today are equipped with rear suspensions that can be adjusted for alignment. Irrespective of the symptoms you are experiencing, a four wheel alignment check is suggested.
    The moderate cost of having your vehicle aligned can more than pay for itself in Tyre mileage, performance and comfort.
  • Q9. Why is there a maximum Inflation Pressures on the sidewall of my Tyre?

    Ans. The Tyre size and tread design that was originally equipped on your vehicle may be used on other vehicles, some of which being heavier than others, therefore requiring higher air pressure for additional load carrying capacity. The maximum pressure on the sidewall of the Tyre is the maximum pressure for the Tyre. The manufacturer of the vehicle has determined the appropriate air pressure for the application based on vehicle weight, to provide the best ride, tread wear, performance, etc. For applications such as towing, pulling, hauling, etc., air pressure should be increased accordingly.
  • Q10. How do I determine if my current rim is approved for your Tyres?

    Ans. The rim width range is extremely important. This range represents proper rim widths that will assist the Tyre/wheel assembly in meeting its performance potential. To achieve the best balance between ride, handling and tread wear, select a rim width based on vehicle manufacturer's recommendation
  • Q11. How much load/weight can my Tyre carry?

    Ans. Never exceed the load-carrying limits molded on the sidewall of the Tyres or the maximum vehicle axle load limit as shown on the vehicle Tyre placard, whichever is less. Overloading builds up excessive heat in the Tyre and could lead to failure.
  • Q12. What is a Directional tread design?

    Ans. Tyres with directional tread patterns must be mounted so that the primary direction of rotation matches the directional arrows on the Tyre sidewall. If all four Tyres are the same size, directional Tyres can be rotated front to back.
  • Q13. What is an Asymmetric tread design?

    Ans. Asymmetric tyres are characterised by different outside and inside tread pattern. One of the sidewall carry marking "Outside" and while fitting one needs to ensure that this side of the sidewall is fitted facing outside.
  • Q14. What is Excessive Spinning?

    Ans. Excessive wheel spinning, when freeing a vehicle from sand, mud, snow, gravel, ice or wet surfaces, can result in explosive Tyre failure, causing serious personal injury or vehicle damage. Never stand near, or behind, a Tyre spinning at high speeds when attempting to push a vehicle that is stuck.
  • Q15. What is Speed rating?

    Ans. The speed rating of a Tyre indicates the speed category (or range of speeds) at which the Tyre can carry a load under specified service conditions. The speed rating system used today was developed in Europe in response to the need to categorize Tyres into standardized speeds. A letter from A to Z symbolizes a Tyre's certified speed rating, ranging from 5km/h to above 300 km/h.
  • Q16. How much pressure should I put in my tyres?

    Ans. Always keep the vehicle manufacturers recommended inflation pressure in your tyres, including the spare. Check the pressure in your tyres monthly and before long trips or carrying extra weight. If you have further questions concerning Tyre Pressure please contact Technical Services of Tyre manufacturer.
  • Q17. What air pressure do you recommend when using an Optional tyre size?

    Ans. When installing a different size than the original equipment tyre, all vehicle manufacturer specifications must be maintained. The replacement tyre should be inflated to provide the same load capability of the original tyre size at the manufacturer's recommended pressure.
  • Q18. What is the lowest Inflation Pressure permitted?

    Ans. Lower inflation pressures for improved flotation are permitted ONLY if the tyre maintains adequate load-carrying capacity at the lower pressure. 20 psi is the minimum recommended pressure for a passenger or light truck tyre. Pressures lower than 20 psi may be used off the road when speeds are less than 25 km/h and when the tyre has adequate load-carrying capacity at the lower pressure. The best recommendation for highway use is to follow the inflation pressure specified by the vehicle manufacturer which can be found in the owner's manual or on the sticker on the inside of the driver's door.
  • Q19. What is your opinion on nitrogen use in tyres?

    Ans. Nitrogen is acceptable inflation gas for passenger, light truck and truck tyres. We have no comment on various performance claims made by nitrogen suppliers.
  • Q20. Is filling tyres with nitrogen dangerous?

    Ans. No, it is actually safe. Nitrogen is an inert, dry, non-flammable gas. It does not support combustion, so it will not burn. Nitrogen's safety is one of the reasons it is used to fill tyres on vehicle that perform in extreme conditions such as race cars, military vehicles and airplanes.
  • Q21. Is filling tyres with nitrogen harmful to the environment?

    Ans. No. Nitrogen is a natural, inert gas that makes up 78% of the air we breathe. Using nitrogen to fill tyres supports a better environment by saving fuel and reducing the number of tyres to be disposed off annually.
  • Q22. If a tyre fail due to any manufacturing defect and due to that customer vehicle get damage or customer family members injured or die, tyre manufacturer take any liability for that?

    Ans. Tyre Manufacturers offer different warranty terms and conditions. Generally tyres are warranted for manufacturing defects only. Companion tyre failure, consequential damages, injuries & loss on account of tyre failure are not covered under warranty. You may check with the respective Tyre Company.
  • Q23. How often should my tyres be checked?

    Ans. Tyres should be checked visually every day for visible conditions such as, inflation status, external injuries/ damages, trapped/ embedded foreign materials.
  • Q24. What should I do when checking my tyres?

    Ans. Check for external damages, tyre wear conditions, condition of inflation, trapped / embedded foreign materials.
  • Q25. What is the minimum tread depth?

    Ans. Minimum Tread Depth in a tyre for a safe driving is 1.6 mm.
  • Q26. Why is tread patterns important?

    Ans. Tread patterns are important for wet traction, better road grip and safe vehicle handling.
  • Q27. Why the maintenance of correct tyre pressure is important and where can I find the correct air pressure?

    Ans. Maintenance of correct tyre inflation pressure as per vehicle manufacturer's recommendation is important for making proper road contact, uniform and even tread wear , safe operation / handling of vehicle and optimum performance of tyres. Recommended tyre inflation pressures are posted at near Driver panel / fuel lid and Owners' manual.
  • Q28. What causes irregular wear?

    Ans. Primary reasons for irregular tyre wear is vehicle mis alignment conditions , worn / defective suspension components , neglect of proper care & maintenance of vehicle and neglect of proper care & maintenance of tyre wheel assembly.
  • Q29. What are the fines for driving with illegal tyres?

    Ans. For safety reasons, tyre conditions mentioned in CMVR are unsafe to use. Please refer relevant CMVR clauses.
  • Q30. While driving on highways what to do with air pressure & why?

    Ans. Before beginning long and high speed drive, it is recommended to check tyre conditions, suitability of tyres for sustained long driving. Check tyres pressures, including spare tyre and adjust to recommended tyres pressure. It recommended that for long and sustained high speed driving increase tyres pressure by 4 PSI over the recommended tyre pressure this is to take care of additional luggage being carried and excessive flexing of tyres.
  • Q31. What is the maximum limit of inflating my tyre and when it will burst?

    Ans. In view of Safety reasons it is not recommended to inflate tyres beyond its recommended maximum inflation pressures engraved on the side wall.
  • Q32. During driving on snow what kind of tyres should we use and air pressure has to be increased or decreased?

    Ans. For Driving in snow there are special "SNOW" tyres available. These tyres are designed and manufactured for extreme temperature conditions and providing required grip in snow. These tyre treads are provided with studs or without studs. Pressure changes according to change in ambient / operating temperatures. If tyre pressures are measured and adjusted in SNOW region then there is no need to increase or decrease tyre pressure.
  • Q33. Can we use liquid sealant in the tyre to prevent puncture?

    Ans. Few manufacturers are recommending liquid sealants for sealing the hole created by nail penetrations. Sealing capability of these sealants will depend on the Size, nature, extent of nail / bolt / or foreign matter penetration and location on the tyre.
  • Q34. How can I identify the date of manufacturing of my tyres?

    Ans. In Passenger Car Tyres the week & Year of Manufacture is engraved in the side wall of tyre . These are generally engraved as a part of DOT. Four digit numbers such as 1215 – 12th weeks of 2015.
  • Q35. How can I identify the right tube less valve for my tyres?

    Ans. Tubeless Snap in Valves is codified with TR Numbers engraved on the valve body such as TR 413, TR 414. These Tubeless valves are selected based on tyre, Rim profile and rim valve hole diameter.
  • Q36. I found some dent on the sidewall of my tyre, is it safe to drive?

    Ans. Dent or depression on Radial tyre side walls on vertical direction is not uncommon. This condition is sometimes on account of thick joint of location of components. This dent or depression will not have any impact on tyre performance, handling & safety. However, it is always safe to get the tyres checked by a tyre expert / mechanic.
  • Q37. My tyres look new but are more than five years old, are my tyres still road worthy? What is the shelf life of tyres?

    Ans. Road worthiness of tyres or suitability for highway / high speed use cannot be assessed merely by looks/ appearance. Tyres do get affected due to aging, operating conditions and tyre care & maintenance practices. Tyres if stored and maintained as per recommended practice the shelf life estimated are five years. It is better seeking Tyre experts' advice.
  • Q38. What care needs to be taken if the vehicle is kept idle for a longer period? (more than a month)

    Ans. If the vehicle is to be kept for longer period, it is suggested that the tyres should be covered with tarpaulin and tyres should be freed from the load (Jack up the vehicle to free from the contact).
  • Q39. Is it advisable to keep the same recommended inflation pressure for a long and continuous drive?

    Ans. For Long and continuous drive it is suggested to increase tyre pressure (cold) by 30 KPa (04 PSI) above the recommended Tyre pressure.
  • Q40. Is it advisable to repair PCR tubeless tyres in the Sidewall region?

    Ans. It is not recommended to repair Tubeless tyres in the side wall region. Passenger Radial Tubeless tyres side walls are high deflection region and repair will fail.
  • Q41. What should I do if my car wobbles at low speed /high speed/at a particular speed?

    Ans. Check Tyre pressure, Check Tyre mounting on rim, tyre wheel assembly on hub. Check wheel balancing, Check wheel alignment conditions.
  • Q42. My tyre shows signs of "Heel & Toe" wear, what could be the reasons?

    Ans. Condition of Heel & Toe wear is a phenomenon generally observed on LUG / STUD / Block Pattern tyres on drive wheels. This Tread wear Condition is attributed to Load / Inflation and torque on the tyre. Check loads, Tyre pressure & driving habits.