Can I replace the lead acid battery in my car with a lithium battery?

My diesel engine is a 1990 unit, can I just replace the lead acid battery for a lithium battery

Why does the coil on my Triumph GT6 overheat?

When I take my Triumph GT6 out, the coil overheats. I have changed the coil, ballast resistor, condenser and have had the points and the timing. Is it the alternator playing up intermittently?

Can you recommend a classic friendly Jaguar specialist?

I have a 1999 Jaguar S-Type. It has covered 34,000 miles and has a few problems, with faulty central locking and the rear windows stuck open. I don't think it's worth paying Jaguar dealers rates for repair...

Why does the heater in my Triumph Spitfire blow cold air?

I have a problem with the heater on my Triumph Spitfire. When the heater is turned to 'hot', it starts to produce nice warm air into the cabin once the engine starts to warm up. However, once the engine...