Keeping track of hot air
When I recently had four new Yokohama 205/55ZR16 91W A Drive R1 tyres fitted to my Subaru Impreza, the tyre man filled the tyres with ‘‘nitrogen’’ and inflated them to 35psi. The recommended pressure is 32 but he said the increased pressure would put more tyre on the road for better wear and would not need to be pressure-checked for six months. Is this OK?
Jack Discombe The tyre man has fed you a line. There is some advantage in running nitrogen in a race car that is operating under extreme duress. On the race track it would be a more stable gas and maintain the pressure better. But there’s no advantage in running nitrogen in a road car. I bet he charged you for the gas as well. It might not drop as fast but the pressure will drop just as it would if you used air, so you still need to check the inflation pressure regularly. DVDUNLOCK CODE When I recently changed the battery in my 2004 Ford Falcon, I found I needed a code to switch the factory-fitted DVD player on again. The previous owner did not supply the code, so I contacted the local Ford dealership, which advised it would have to remove the DVD player, locate a serial number and fax it off to Ford Australia, which would then send the code out. This was going to cost $85, which we declined. Three months later, I contacted the same dealer to book the car in but the price was now $150. Can you please tell me if there is another way of getting the security code for our DVD player, perhaps by supplying the VIN or engine number?
Glenn, email You could contact Ford’s customer assistance service and ask for their help, but I suspect the only way is to get the serial The camshaft in the 2007 Toyota Hilux Twin Cab diesel I bought at the start of the year has snapped and I have been told by Toyota it needs a new motor ($6500-plus). It had 36,000km on it when I bought it and now has 65,000km. Toyota has never heard of this and cannot explain what could cause this to happen. I work on a dairy farm in the country and live down a gravel road. I have put a lot of money into the ute and need it to provide safe and reliable transport for my family. I don’t have that kind of money. What can I do?
Nathan Chatfield, email
Inflated ideas: Nitrogen is Okin race tyres but isn’t needed on the road