It's also important to look after your tyres. The ideal tyre pressure will differ depending on the terrain you are tackling, and this can hugely affect how many miles your SUV tyre can journey for. For example, if you’re road driving, you should refer to your vehicle’s handbook, with the pressure usually somewhere between 30 to 38psi. For rough, gravelly surfaces, drop the tyre pressure slightly by approximately 6psi. Muddy routes require further pressure release depending on exactly how muddy. Somewhere between 22 to 28psi is recommended, but you must tackle the route with caution. Rocky conditions will require a similar pressure level, while off-roading on sand can allow the pressure to drop even further and you’d still have the required traction.
However, be sure to consult your manufacturer for advice on reduced inflation pressures. A tyre has to be designed to run at reduced inflation pressure, as just taking a bit out could lead to it rupturing.