Tyre pressures and costs - the numbers count

Under-inflated tyres increase your vehicle’s drag, which increases fuel consumption. But by how much exactly? A study by the National Highway Traffic Safety Administration (NHTSA) in the USA found that every 1 per cent decrease in tyre pressure correlated to a 0.3 per cent reduction in fuel economy.

Show me the numbers

Under inflation of the tyre by 10 per cent increases fuel consumption by 2 per cent. That’s a lot. Twenty per cent under-inflation increases fuel consumption by 4 per cent. With tyre pressure at 40 per cent below the recommended level, the tyre’s fuel consumption increases by 8 per cent. And from there it’s all mathematical!

Long term Effects

This can have a significant effect over time as tyres can naturally lose one to two PSI per month. Changes in temperatures can also affect tyre pressure. For every 5 °C drop in temperature, there is a 2 per cent loss in tyre pressure.

Here at SuperTyre, we can help you out. Why not get in touch with Shane or Henk. We’ve got the tech and solutions to help solve these issues.

So let’s talk.