Frequently Asked Questions

Tube Air Pressure

Yes. Nitrogen being inert, non combustible and non corrosive gas giving us the following advantages: • Nitrogen permeates the tyre significantly lower than the oxygen in the air. It stays in the tyre for longer time, hence tyre pressure stay constant for a longer time. • Improves fuel economy • Reduces tyre oxidation/ wheel corrosion • Reduces running temperatures of tyre.
There could be many factors for this involving wheel rim, tyre, tube and valve. Would request to get your tyres inspected by our tyre experts for investigation and corrective actions.
Always check tyre air pressure when tyres are cold after vehicle has stopped or before it has been driven for 2 Kms. Use accurate tyre pressure gauge. If check is made when tyres are hot then inflation pressure above 4 psi than the recommended cold operation air pressure by the vehicle manufacturer is permissible. Check the pressures of your tyres, including spare, once in a fortnight and before any long journey or if traveling with a heavy load. Never bleed when tyres are hot. Ensure a dirt-free valve cap is always fitted.
Proper air pressure is the most important part of tyre care & maintenance. Always maintain tyre air pressure as recommended by the vehicle manufacturer. You can find this tyre air pressure recommendation in your vehicle owner's manual, posted on the edge of the driver's door, on a door post or on the inside of the glove box door.

Radial Tyre

It's natural for radial tyres to have a slight bulge in the sidewall/shoulder area at their proper air pressure. Check or adjust tyre air pressure every fortnight, before any long trip or if traveling with a heavy load. And don't forget to check the spare.
Tyres of different size designations, constructions, and stages of wear may affect vehicle handling and stability. For best all-around performance, it is recommended that all tyres be of the same size, construction (radial, non-radial) load and speed rating. Never mix radial and bais tyres on the same axle. When Radial tyres are used with Bias on the same car, the radials must always be placed on the rear axle. A single new tyre should be paired on the rear axle with the tyre having the most tread depth among the remaining tyres.
In tyre designation or size markings “R” is used to denote Radial construction of a tyre. E.g. 165/80R14 – here R indicate Radial tyre for 14 inch rim diameter code. Moreover “Radial” is also embossed on the tyre sidewall.
By virtue of their inherent design radial tyres have the following advantages over Bias tyres • Longer tyre life • Improved fuel efficiency • Better high speed performance • Better Vehicle handling and driving comfort • Improved braking & cornering • Better puncture resistance

Tubeless Tyre

In tubeless tyre, there is no tube and air is compressed between tyre and rim assembly. There fore it is important that the condition of your wheel rim should be good and should be able to support tyre beads firmly so that there is no air leakage. We recommend to visit our Steel Wheels centers for proper fitment of Donlub tubeless radial tyres.
No you do not have to check tyre air pressure more frequently than a tube type tyre provided tubeless tyre is fitted properly on a correct rim with right valve fitment. However if condition of rim is not good (viz. bent, cracked, rusted etc) or tyre or valve is not properly fitted then there are high chances of frequent air loss problem. Since air pressure is the most critical parameter in a tyre for its optimum performance it is advisable to check your tyre on a regular basis irrespective of its construction.
By virtue of their construction and design, a tube type tyre must not be used without tube as tubeless. However use of tube in tubeless tyre for limited period in case of emergencies is permissible.
There is no difference in appearance between tube type and tubeless tyres. However “Tubeless” is written on the sidewall of the tubeless tyre to indicate its construction.