Which car would be more economical in terms of mileage and maintenance – fiesta diesel or petrol?

jk7k asked: Initially fiesta petrol costs much less than fiesta diesel. Though fiesta diesel would be more economical in terms of running a car as compared to fiesta petrol. But what i have heard is that diesel cars require more maintenance as compared to petrol cars.

Would this be the case with fiesta diesel? Would the highly refined engine of fiesta diesel require more maintenance? Has anyone used fiesta for over a long time and seen the maintenance cost of fiesta diesel?

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  1. DoNNy says:

    Diesel. Diesel. Diesel.

    Engine will last just about forever (low maintenance) and the mileage will be much better.

  2. Debby B says:

    regular diesel makes a lot of pollution= can you go biodiesel??? and is it available where you are??? D

  3. Travis W says:

    I too wish there was a clear winner in the diesel vs. petrol question.

    You get better mileage from diesel, but the fuel is more expensive.

    Routine maintenance is more expensive with a diesel engine, but you don’t have to do it as often.

    Diesel fuel is available from renewable resources, but it does not burn as cleanly so produces more greenhouse gasses.

    Sigh…. it’s a toss up!

  4. kittenshark says:

    I have absolutely no idea what you’re talking about :)

  5. iamfiroz says:

    petrol gives more millage

    pollution free

    less maintainance

    but it cost a lil more than diesel

  6. James007 says:

    This will be my next car.

  7. nicu says:

    diesel, i suggest you pick the common-rail.

  8. mrbadmood says:

    Diesel is better. Most modern diesel cars like VW are way better than they used to be. Quieter, and more powerful. My friend has a big heavy Mercedes diesel and he goes much farther than a gasoline engine car of the same size.
    As long as you do the regular maint on a diesel, there’s no reason for it not to run forever. Just make sure to change all filters regularly and dont contaminate the fuel with water and change the oil when you should.
    The only bad part about diesel engines is that IF they need repairs it can be more expensive. Injector pumps cost quite a lot if one were to fail. IMO, I think Deisels are more troublefree.