Techmail

Tyre markings

Can you please explain the difference in the meaning and application of the following two tyre marks? (1) 255/40 R17 94W and (2) 225/45 R17… Read more →

Tyre size

Browsing through the new Toyota Prado specs I see that the tyre size differs between the new VX and TX models, although the engine type… Read more →

Smoking Volvo

I took delivery of a Volvo V50 D5 Geartronic in December 2007 and have completed only 16 000 km to date. I’m very satisfied with… Read more →

Oil use

I am driving a Mercedes-Benz C180 K model that I bought new in 2006. At present the odo reads 38 000 km. My only problem… Read more →

Fuel mastery 1

In recent months you’ve tested the Kia Soul, the Kia Cerato and the Hyundai i20. All have the same 1,6-litre engine. How on earth do… Read more →

Fuel Mystery 2

A Ford Territory TX recently replaced our smashed Toyota Condor. Imagine my surprise when the big Ford proved to use less fuel than the Condor…. Read more →

Biodiesel

I know some people who produce biodiesel on a relatively small scale. Is biodiesel fit for use even in cars that call for 50 ppm… Read more →