What is in your tires?
Be Safe with nitrogen
I already have 78% N2 in my tires, why do i need more?
It’s not just about adding more nitrogen; it’s about reducing the amount of oxygen and moisture.
Reducing the oxygen level from 20% to about 5% is very important.
- Oxygen permeates out through your tires 3-4 times faster than nitrogen, resulting in faster pressure loss.
- Oxidation occurs when oxygen reacts at high temperatures and pressures like those in a tire. It breaks down the tire’s inner liner as it migrates out through the rubber and can damage any metal components including rims, TPMS sensors, and valves.
- Oxygen also supports combustion, while nitrogen is inert.
Nitrogen in Tires:
Proper Tire Pressure:
- Improves fuel economy
- Extends the tire’s life expectancy by maintaining even tire wear
- Reduces chance of tire failure
- Improves steering, braking, and handling
- Reduces exhaust emissions that contribute to environmental, health and climate change problems
Under inflated or correctly inflated:
|Percentage of Under Inflation||Percentage Wear Increase||Fuel Use Increase|
What you need to know to ensure you and your passengers are traveling safe.
Frequently Asked Questions
Why is nitrogen better than air?
Nitrogen provides better maintenance of tire pressure. Because of its larger molecular size, nitrogen migrates through a tire three to four times slower than oxygen. A tire filed with “plain old air” will lose 1.5 PSI in less than a month; with nitrogen, this could take three months or longer.
Is nitrogen safe?
Nitrogen is a non-flammable, inert gas which does not support combustion, as oxygen does.
Can I add air if my tires are filled with nitrogen?
There is no problem with mixing regular compressed air into nitrogen filled tires. However you should try to maintain a 95% purity or higher.
If I have added air to my tires, how do I get my nitrogen purity back to the proper level?
Return to your selling dealer to have the tire deflated and refilled with nitrogen.
How does nitrogen in my tires save me money?
Proper inflation increases tire life and reduces road resistance, resulting in better fuel economy. Consider the amount of energy needed to push a wheel barrel with a low tire vs one with proper tire pressure.
O2 “permeates” approximately 3-4 times faster than does N2 through a typical rubber, as is used in tires, primarily because O2 has a slightly smaller effective molecular size than does N2.
Tires can lose 1 PSI (pounds per square inch) per month under normal conditions. Additionally, tires can also lose 1 PSI for every 10°F temperature drop.
According to a recent study, about 70% of the vehicles on the road in Canada have at least one tire that is either over or under-inflated by more than 10%.
Proper Tire Maintenance
Alignment - Poor alignment will cause tires to wear unevenly and have handling problems, such as “pulling” or vibration. Poor alignment will also increase your fuel consumption. Alignment should be checked annually, or every 25,000kms.
Balancing - If wheels are out of balance, you may feel it through the steering wheel. This could shorten the life of suspension components, lead to uneven tire wear and increase fuel consumption.
Rotation - Regular rotation will minimize wear and prolong the life of your tires. Front tires work harder than rear tires as they must bear the scrubbing action of steering as well as rolling wear. Common practice is to rotate tires approximately every 10,000kms.
Tread - Tires are designed to grip the road, allowing your vehicle to start, stop and go around corners safely in any weather. It is extremely important to check your tire treads for signs of wear. Tires are manufactured with a “wear bar” – when you see this wear bar, the tires must be replaced.
Damage - It is important to perform regular visual inspections of your tires for signs of damage and excessive wear. Look for embedded objects, such as rocks, nails or glass. Catching problems early can save you money and prevent a tire failure.
Storage - When not in use, tires should be stored upright in an indoor location, out of direct sunlight or exposure to strong artificial light, heat, ozone (electrical motors) and hydrocarbons. If tires are stored on their rims, the pressure should be reduced to approximately 15 PSI to avoid cracking or deformation.
Measure your tires pressure at least once per month using a good quality tire gauge. A visual inspection is not sufficient to detect under or over-inflation problems.