Knowledge Base

How to drive a petrol and Diesel car?

How to drive a petrol and Diesel car? - image

A few basic differences are listed below.

  • In the case of Diesel engines, changing gears up should be effected at 2,000 revs, as above that limit fuel is burnt more extensively. In the case of petrol cars, the least fuel is consumed between 1,700 and 2,200 revs per minute.
  • In cars not equipped with turbochargers, especially the petrol ones, gears should be changed at 2,500-3,000 revs per minute. Long driving at less than 2,000 revs is dangerous to such cars – it poses a risk of damaging the bearings by the gear box or the dual mass flywheel. But bear in mind that the more powerful the engine, the lower the revs can be at changing gears.
  • Both in the case of cars equipped with a Diesel and petrol engine, it is worth driving dynamically, as then fuel is transformed into the most adequately large portion of energy, thus operating most economically. Short-term fuel consumption will be high but the car will quickly achieve speed optimum for economic driving (50-80km/h).
  • When in a traffic jam, it is worth driving slowly – when the car has no chance to speed up to the above mentioned levels, move calmly, saving fuel.