@Steve, asante sana. Just to add to the pressure dilema, there are tyre wear issues. If under pressure, then wear in in the outside of the tyre tread while over pressure and wear is on within the centre of the tread area. If tyres say give upto 40,000kms - 60,000kms then an expensive tyre is worth it. Not driving like a rally ace nor drifting, I think a tyre is good for about 4 years @12000kms per year, given some potholes and uneven road surfaces. Imagine if you have to replace a quality tyre within a year of buying it, and all due to incorrect pressure. And safety is compromised due to : - if under pressure : more swaying into corners and risk of tyre burst as the side wall takes the twisting forces. - if over pressure : less tyre contact with the road, during rainy season and hard braking, can cause sliding and loss of control. There are many factors on each and can be googled. And local tyre vendors tend to be interested in a sale, rather than info. As an example : http://www.michelin.co.uk/michelinuk/en/car-4x4-van/tyre-pressures-what-happ...