How can I tell whether my Mitsubishi Chariot has a piston or ring problem?

I have a Mitsubishi Chariot 1996 2.0 auto and would like to know how I can tell if I have a piston or ring problem. The last thing I want is to take the engine out to check. I am too scared to drive the...

Can I try a premium fuel to improve my Vauxhall Astra's fuel economy?

I drive a 2006 Astra 1.8 SRI with 49,000 miles on the clock. A few months ago, the onboard computer indicated a 15-20 per cent drop in economy. I checked and found it was showing I had used more gallons...

Using premium fuel in my Volkswagen Passat has improved fuel economy and burns more cleanly.

For a while I had been sceptical about the benefits of using higher quality fuel opposed to cheaper supermarket grades. Now that I have been using Shell on a regular basis, it has cleaned the injectors...

What's causing my RenaultSport Clio to 'kangaroo' under acceleration?

I bought a Renaultsport Clio 200 brand new two months ago and am experiencing issues with acceleration, particularly from cold starts. On six or seven occasions the car seems to "kangaroo" within five...