GORV - Digital Magazine Issue #25 | Page 10

An Aeroplus aerofoil – these are not gimmicks. AEROFOILED NO PRESSURE THE MYTH: THE MYTH: Aerofoils that you can fit to the 4WD to reduce drag when towing are a fancy gimmick. times FALSE I recently had the opportunity to test out the Stealth deflector. I honestly didn’t think it was going to make much difference but I was wrong. Not long into the trip, it was very noticeable that we were rolling along, rather than ‘pushing’ along. When I used to see a semi trailer coming, I would move over as the wind drag would give the caravan a little wobble. But with the wind deflector on, I discovered that when passing a truck, the van didn’t move at all. And the best part – because who doesn’t like saving money? – I got an extra 100km out of a tank of juice. They’re no gimmick. I would not tow a van again without one. 10 \ The best way to ascertain correct tyre pressures is to measure them when the tyres are cold and again when hot. An increase of 4-6psi usually indicates correct pressures. TRUE check Check your tyre pressures when the car hasn’t been driven for several hours (the air in your tyres will be ‘cold’). Then, drive as you would normally for the terrain you are on. After an hour, pull over and check the tyre pressures again. If they have gone up by 4-6psi, you are bang on the money with the correct tyre pressure for your given speed, weight and terrain.