Ask Honest John

Most recently answered tyre pressures questions
We changed up from a 2007 V70 Volvo auto with 17-inch wheels and purchased a 2014 Honda CR-V 2.0 i-VTEC EX auto in November and like it very much. However, the 18-inch wheels make for a hard and uncomfortable...
I have read with interest your recommendation that tyre pressures be dropped by 3psi for comfort. Yet I remember when you recommended that for long distance, high speed, well loaded travel in a hot climate...
In 2011, I bought a 2010 BMW 520d touring and a set of extra alloy (327 style) 17 inch wheels with 225/55 R17 run-flat winter tyres. This year I traded the car in and bought a June 2014 320d xDrive Touring....
I recently had four winter tyres and steel rims fitted to my B-Class by a Mercedes-Benz dealer as per their suggestion. However, I found the noise they produce to be much higher than normal tyres and much...
I have just bought a 2007 Citroen C4 Picasso and cna't work out the correct tyre pressures. It says on the door panel different pressures for this model from 3.4 bar downwards, but it's in French and I...
Screw-in tyre pressure monitoring systems, are they worthwhile?
I have a Ford Transit-based Auto-Sleeper motorhome with Continental Vanco tyres. I have the axle loadings. Could you please help me with the correct tyre pressures? There is nothing in the handbook except...
I wondered if the goods or services advertised in the motoring section of Saturday’s Daily Telegraph were endorsed by you or the Daily Telegraph? I was looking at the advert for "tyre pressure indicators"...
One tyre of my wife's 2003 Ford Focus gradually deflates from 30PSI to around 10PSI in the space of about a week. I have renewed the tyre and the valve twice but the problem persists. The tyre dealer can't...
I have been considering the possible merit of using TyrePal. My concern is that the device that fits to the tyre valve and must hold the valve open to be able to see the pressure. Without TyrePal there...