Which is better car petrol or diesel?

Answer 1

It depends on what your needs are: if you want to get better mileage get a diesel or hybrid petrol car - but they cost more to buy than regular cars that run on unleaded.

Diesel usually has more power at low revs but much slower acceleration. Diesel smoke is not pleasant smelling and when diesel gets cold it becomes harder to burn.

With new technologies - like variable geometry turbos - now even diesel cars have become more responsive to the throttle with reduced lag. Moreover diesel is cheaper than petrol in many countries. (In the UK diesel actually costs more per gallon than regular unleaded petrol.)

If we consider heavy vehicles such as trucks and buses, to move the heavy load diesel is used because they need their energy produced as highest possible torque at low engine revs, not maximum road speed.

Answer 2

Depends on where you live, the price difference between both, the purpose of your vehicle, and how much you drive and where.

For example you would want diesel engine for a truck or an offroad vehicle where you need the torque, other than that they have cars that run on diesel such as the Audi's that get very good gas mileage with their diesel engines but if your looking for performance in your vehicle like a sports car it might be better to go with a petrol engine.

The main decision factor between both is usually the price for each type of fuel and the mileage your vehicle gets.