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What about VW TDI engine?



  • moparbadmoparbad Posts: 3,842
    Oil analysis after 10K using a quality oil such as Mobil Delvac 1 has proven that not only is 10K appropriate, it is conservative. The TDI does not have the frequency of problems with burning oil that the 2.0 seems to have. My current TDI is not burning any oil though it does not have enough miles to be good example. Other owners (20 plus) that I have personally spoke with face to face do not have any oil burning either. There are some TDI's out there that do burn oil.
    About the earlier timing belt issues, I have two options available to have timing belt changed that will cost less than $300 including parts, and one of those is a dealer service department.
    Would be nice if there was a timing chain, the timing belt is an negative aspect of the TDI that I choose to accept.
    You are 100% correct that for ownership cost the VW is not lowest cost TDI or gasoline. It is however the most excellent ownership experience for the $ that I have come across.
    I spend far too much time in my car to have one that is not going to provide enjoyment when I drive it.
    Oh, and by the way, the TDI uses 4.4qts of oil, 10 oil changes over 100K miles would be $220 or $0.0022 per mile. This is using your $5.00 per quart figure.
  • focusmatt2focusmatt2 Posts: 106
    I would not recommend an traditional automatic with a 1.9 TDI engine. That combination is rare to unheard of overseas in European Golfs, Boras and Polos. The only reason the 1.9 TDI has the ability to get away with being peppy is because of its revvable nature.

    An automatic would sap it as much or worse than you can experience on a 2.0.
  • moparbadmoparbad Posts: 3,842
    The automatic in the TDI is very good. The torque on the TDI is 155lb-ft at 1900RPM. This is same torque as 1.8T. The automatic with TDI provides power immediately without having to rev the motor to 4K RPM like many gas 4CYL cars.
    70 to 80 MPH is quiet and comfortable with the engine turning less than 3K RPM.
    The comment about TDI's not having auto in Europe needs to be taken in context. Almost no small cars and very few large cars in Europe that I ever saw had automatic. Europeans prefer manual. Does not indicate that an auto is not good.
    I drive a TDI auto because I drive in major stop and go traffic and the auto just makes more sense. When I drive my truck with a manual I have to row the gears like a madman.
    A/C or no A/C, auto or stick, the TDI has plenty of performance, and if it is not powerful enough, $300 to have the car "chipped" will provide more performance.
    As far as the MPG difference, yes the sticker is accurate as to the MPG differnce.
    My mileage averages 42. 37-39 MPG for the TDI with auto is common for other owners. Over 50MPG is common for manual drivers. Expect a 15% penalty on the mileage for an auto compared to manual for the TDI.
  • focusmatt2focusmatt2 Posts: 106
    I still would not recommend the automatic. That's just my opinion... the automatic defeats the purpose of the TDI engine. You lose gas mileage, and the revvable nature of the engine is sapped.
  • focusmatt2focusmatt2 Posts: 106
    the 2.5 V6 TDI, a Volkswagen auto group engine offered in the Passat, among other cars, is really what I hear to be the best diesel for a midsized car. It has 150hp and 220lb-ft of torque, which is by any stretch of the imagination a very rapid vehicle.
  • moparbadmoparbad Posts: 3,842
    First of all the only TDI engine and only passenger car diesel offered in the US or Canada is the 1.9TDI by VW. Telling me how good the 2.5 is is like sending a child into a candy store and telling them they can not touch or taste any of the candy.
    How is the revvable nature of the engine sapped? This engine develops peak torque at 1900 RPM and operates best at 2 to 3K RPM. The mileage on manual is 42 city 49 hwy and on auto is 34 city and 44 hwy. 34/44 is damn good and only the Honda Civic HX CVT at 35/40 is comparable.
    As I posted earlier I average 42 MPG with my Golf TDI auto and this is with 50/50 city and hwy driving.
    The automatic is well suited to the torquey nature of the TDI. The manual is a better choice for higher mileage seekers and also saves cost due to 60K interval for timing belt as opposed to 40K interval for auto.
    Some people prefer auto, some prefer manual, with the TDI either option is a good one.
    ? for focusmatt2 How much time have you spent with auto TDI? I can honestly say that I was doubtful about the auto before I experienced it, experience of the auto sold the auto.
  • Hey Moparbad, gotta question about the engine oil for the TDI. I can't find the Castrol 10-40W that they use at the dealer anywhere else but at the dealer. And they want an arm and a let per quart.

    My question is: Do you know of anywhere where you can buy Castrol 10-40W? No auto parts stores seem to carry it. Is it okay to switch to 10W-30 Mobil 1? Will I get better gas mileage with the lighter oil switch? What oil do you use? Where do you buy it?

  • moparbadmoparbad Posts: 3,842
    Recommended Oils.

    Mobil Delvac 1 5W-40

    Chevron Delo 400 5W-40

    Amsoil Series 3000 5W-30

    There are others that are OK. Forget about the dealer Castrol. It is OK but not as good as the above. Below is a link to info on where the oils can be purchased.

    I use Mobil Delvac 1 and get it at Farm and Fleet Stores for about $19/gallon.

  • mpgmanmpgman Posts: 723
    Ditto on the use of a timing chain, except that with a diesel engine it would probably be a lot noisier. What kind of mpgs can you expect on the auto with a light foot and a steady 65 cruise? 45?

  • focusmatt2focusmatt2 Posts: 106
    My hire car in Britain (an Astra) had a 2.0 TDI engine from Vauxhall, which is similar in architecture. It had an automatic because I requested it, not knowing what i was getting into. Now i'll agree that that is not having driven a 1.9 TDI from VW with an auto, but they have similar performance figures.

    But it comes to the overall appeal of the engine. There's a reason many german carmakers outsource their automatic transmissions to GM and other American companies. I simply am recommending the manual over the automatic, because that engine/transmission combination is tried and true, and it yields better gas mileage. If you get the automatic, you are demoted to Civic HX mileage. And the Civic HX with its CVT is faster and runs on more readily available fuel and is cheaper to buy and likely cheaper to insure. Now, if VW would allow a CVT (known in Audis as Multitronic) to exist with the 1.9 TDI, I would recommend it. Sort of the best of both worlds.

    It's just that small 4-cylinder engines, especially diesel, tend to make driving a little less fun, a little less economical, and a little less peppy when mated to an auto tranny.
  • mpgmanmpgman Posts: 723
    For some strange reason, Honda puts a high economy engine in a coupe, which is most often associated with sportiness, as opposed to the sedan, where the more "frugal" or "more conservative" in this price segment might tend to trend. power windows (a plus for some), no ABS, not sure about the side air bag availability, etc., etc. I doubt that the HX with CVT is that much more miserly with fuel than the EX, and for that matter, drivers wanting more response might be heavier on the gas pedal on the HX which would hurt mileage. BTW, are the HXs out yet? I was looking for them a few months ago and dealers had no clue.
  • twig93twig93 Posts: 38
    When my manual TDI was in for an oil change, I was given an auto TDI Golf as a loaner. Let me just say.....I would never had bought an auto TDI. It drives nothing like the manual. It is so sluggish, I wasn't even sure I was moving at first. Of course, as it warmed up it did get better, but it had no where near the power I feel I have in the manual. Go drive an auto and then a manual. You WILL notice a difference.
  • mpgmanmpgman Posts: 723
    Interesting but a bit puzzling. I test drove a TDI auto and was shocked at how quick it was off the line. My only observation was that at around 40 mph, it was nowhere as quick to accelerate from there than the manual, but it appeared to hold its own well enough.
  • focusmatt2focusmatt2 Posts: 106
    Perhaps it's a hit or miss kind of thing. It may also have to do with the quality of the diesel being used as fuel.
  • focusmatt2focusmatt2 Posts: 106
    I was running late on my way to work, and was taking a right to enter the freeway, when this dull silver Golf TDI (probably 2000 model) whizzes fast beside me and passes me up. I figured it had to be a GTI but once i noticed the rear badge, i was surprised. But that was all low-end torque ;) By the time we were on the freeway I was far past him, going about 80 while he was struggling to go 65.

    But anyway, I was impressed. I'll say it again... Pumpe-Duse VW engines NEED to come over here! I was reading an Audi AD in a magazine that explains PD technology and it sounds so exciting, like one of those Union Carbide commercials about "the exciting world of atoms".
  • natescapenatescape Posts: 176
    I seriously doubt it was struggling to go 65. I have had my Passat TDI (a 1996, prior generation engine and much heavier) up to 110 and it only uses 3500 RPMs to go 100...

    In fact, this car's strength is its highway cruising and passing power, IMO.
  • focusmatt2focusmatt2 Posts: 106
    Well it was at 65, and of course it can go faster, but the point is, it quickly lost the edge.
  • focusmatt2focusmatt2 Posts: 106
    By the way, your "non-existent Passat V6 TDI" does exist in some slight form ;)

    The make a 2.5 TDI V6 Audi A6 wagon, which is the same platform as the Passat (in the UK). They are reportedly going to offer this engine in the Passat, too.
  • twig93twig93 Posts: 38
    How do you know the car was struggling to go 65? Perhaps it was the driver who decided to drop back.
  • natescapenatescape Posts: 176
    They won't bring the v6 TDI to the US. We get the weakest TDI engine, and we don't get it in the Passat. It's too bad. In fact, MOST manufacturers make diesels to be sold in Europe. Sadly, Mercedes is making a twin-turbo diesel M-Class in the US to be shipped to Europe. Makes me wanna cry. ;)

    The TDI's strength isn't 0->60. It's not a drag racer. Its strength is 40->90. I'm guessing the other drive laid off, not petered out.
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