Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Volkswagen Passat 2006+



  • markcincinnatimarkcincinnati Posts: 5,343
    I find your thoughts and arguments if that is an appropriate term to typically be persuasive, but "not jus' cause you said so."

    Stating your opinions with the disclaimers many use here is indeed very valuable. As I have said, far more valuable than data points published by CR.

    You and I may disagree about AWD, RWD and FWD for all time. Yet, by reading, considering and in some cases vetting what is written here (not just by you), I have learned important facts and developed points of view that I would almost certainly not have learned and developed otherwise.

    Taking the high road, when possible (and it usually is), is the best choice.

    Considering the search capabilities herein it sometimes (not often, but sometimes) blows my mind that people will post asking about regular vs premium, oil specs, tire inflation and extended warranties. One would think these topics have been literally exhausted.

    Yet we continue to see some of the same issues broached that we had just elaborated on two weeks ago go unresearched and the question posted again.

    And, you know what, Shipo? Most of us just keep on participating without much if any sense of exasperation.

    I don't want to make you think I will not debate you further, but I did want to give you a sense that at least I do appreciate and value your input.

    BTW, Passats are breathtakingly expensive to repair and maintain out of warranty. Passats are generally less costly to fuel if the fuel that is used is Premium. And the VW spec oil and filters are not a nice idea, they are mandatory.

    Oh yea -- AWD rules. :surprise:
  • 600kgolfgt600kgolfgt Posts: 690
    > BTW, Passats are breathtakingly expensive to repair and maintain out of warranty.

    Yeah, if you insist on taking it to the dealer everytime. I live on the East Coast, and I go to a couple of private VW specialists (Both VW master mechanics) who will repair and maintain them (using the same techniques, diagnostics, etc. as the dealer) for siginificantly less than what the dealer charges.

    Many drivers make the mistake of continuing to take their cars to the dealership long after the warranty has expired (save for oil changes, TSB, and recalls)...
  • shiposhipo Posts: 9,152
    And here is where the British (I think) have coined a phrase that fits quite nicely, "The loyal opposition."

    Regarding the arguments surrounding which driven wheels is the best for which driving environments, I have not doubt that you and I (and many others) will go many enjoyable rounds for quite some time into the future. ;-) That having been said, relative to the myriad of other automotive related topics, you and I seem to agree on more than we disagree, and yet, AND YET, in spite of all of the supporting science, anecdotal evidence and basic logic supporting our views (errr, opinions), there will be many folks who will very definitely see things differently. Are we correct? Probably in most cases. The good news is that you and I both seem to view that "Probably" part of the statement as a reason to read and consider prior to arguing a point.

    Low compression = Regular gas
    High compression (Passat 3.6) = Premium gas
    Low compression/Turbo (early 1990s Chrysler Turbo) = Premium gas (unless easy steady state driving)
    Medium compression/Turbo (late 1990s Audi 1.8T) = Premium gas (unless very easy steady state driving)
    High compression/Turbo (Passat 2.0T) = Premium gas

    Oh! RWD is da bomb! :shades:

    Best regards,
  • georgekgeorgek Posts: 50
    Just to muddy the water a bit: my wife's 2001 Volvo 215 hp, 5 cylinder turbo specifies 87 octane. Her dealer recommends 89, which is what she uses.

    I'm buying a 2006 SAAB 9-5 "High Output Turbo" (2.3l, 260hp 258pft)SAAB specifies "87 or higher", recommends 92-93 for best performance.
  • shiposhipo Posts: 9,152
    "Just to muddy the water a bit: my wife's 2001 Volvo 215 hp, 5 cylinder turbo specifies 87 octane. Her dealer recommends 89, which is what she uses."

    Near as I can tell, the engine in your wife's car has a 9.0:1 compression ratio meaning that it should run quite well on Regular (in a lightly boosted mode), however, my bet is that for optimum power, Premium is required. This is one of those engines that is of a split personality regarding fuel as it will most likely deliver its best mileage on 87 or 89 while being able to deliver its best power on Premium fuels.

    As for the blown mill in the new 9-5, it too has a relatively moderate mechanical compression (9.3:1) and as such, Saab's "87 or higher" recommendation is probably just fine. As for the whole "Best Performance" thing, I'm not aware of even a single blown engine built since the 1920s that would deliver "Best Performance" on anything other than Premium gasoline.

    Best Regards,
  • georgekgeorgek Posts: 50
    I've always used premium in my 1.8T and will do the same with the SAAB. MPG and power both are higher with premium.
  • shiposhipo Posts: 9,152
    The Audi 1.8T mill as well as the Saab 2.3T run with a 9.3:1 mechanical compression ratio (as opposed to the 10.5:1 of the new Audi 2.0T setup), and as such without a double blind back to back test, I'd only lay 50-50 odds that those two engines will get better mileage on Premium as opposed to Midgrade.

    Said another way, 9.3:1 is a moderately high compression ratio and as such would probably have a natural mileage sweet spot with Midgrade fuel were it not for the engine electronics and the blower. Assuming that there is even a little boost from the blower at higher highway speeds coupled with the electronics being able to advance the ignition timing and I'd have no problem believing the "Better mileage with Premium" argument, however, if you happen to drive at a low boost steady state speed of 55 or lower, you might could well find that the Midgrade delivers the better economy. Of course, we are probably talking a single MPG either way, and when the whole peak power argument is brought into play, then Premium is the only real option for gasoline. ;-)

    Best Regards,
  • 150mphclub150mphclub Posts: 316
    the AKI is calculated at sea level. in mountain states altitude, 85 is equivalant to 87 at sea level.
  • shiposhipo Posts: 9,152
    "the AKI is calculated at sea level. in mountain states altitude, 85 is equivalant to 87 at sea level."

    That is only true when you are driving a normally aspirated engine. It isn't even remotely true when you're driving a car with a turbocharger, ask me how I know. :-(

    Best Regards,
  • bjbird2bjbird2 Posts: 647
    I thought the term "blower" referred to superchargers, not turbos.
  • shiposhipo Posts: 9,152
    A breathed on engine has a blower regardless of how said blower is motivated. True the term is probably used more often in drag racing circles, however, I've seen "blower" used to refer to "Turbosuperchargers" (as turbos used to be called) as far back as the 1920s.

    Best Regards,
  • 600kgolfgt600kgolfgt Posts: 690
    > I thought the term "blower" referred to superchargers, not turbos.

    "Forced induction" would be a better term to describe both...
  • shiposhipo Posts: 9,152
    ""Forced induction" would be a better term to describe both..."

    Where do I submit my Literary License Application so that I can be approved to use the following terms to refer to a turbocharger:

    Air pump
    Pressure maker
    Atmosphere densifier
    Altitude reducer

    While I'm at it, I'd also like to apply for permission to use the following terms to refer to a turbocharged engine:

    Breathed on
    Force fed
    Abnormally aspirated


    Best Regards,
  • jimd4jimd4 Posts: 877
    As someone who is interested in the 2006/2007 Passat and Passat wagon, it would be good if this forum could move beyond the topic of oil and turbos and get some info on an all around view of what owners think about Passat features, performance, costs etc.

    Check out the RAVA4 2006 forum for a view of life beyond oil specs.

    Otherwise, I suggest the name of the forum be changed to "Endless Shipo". I think the forum hosts must be asleep most of the time maybe?

    Good luck!
  • shiposhipo Posts: 9,152
    You would rather have me sit idly by while incorrect and potentially harmful information is being bandied about? Sorry, no can do. I am a former Passat driver and a potential future one as well and have a very acute interest in this car and its diminutive 2.0T engine (which also powers another car on my short list, the A3).

    Personally, I think discussions regarding such Passat/2.0T centric topics as proper oil and gasoline selection for a high compression turbocharged high specific output engine are far more germane to this topic than very sketchy comparisons to the Rav4. :P

    Best Regards,
  • bjbird2bjbird2 Posts: 647
    I'm not even remotely interested in the Rav4. Why should I check it out?
  • patpat Posts: 10,421
    What you need to do is make posts on the subject which interests you in order to engage others in a different line of conversation. Let's not make this personal.
  • jimd4jimd4 Posts: 877
    Not for the RAV4 but for the mixed and handy inputs on a topic besides oil specs as an example of what useful forum is like. Not one person in a month here has posted much on handling, features, price, pitfalls etc.

    I guess Shipo married the bosses daughter since he seems to run the site.
  • jimd4jimd4 Posts: 877
    Not personal at all. Trying to make a point that there is more to Passat that oil specs. Maybe there could be extra added forum on Passat oil problems.
  • patpat Posts: 10,421
    This is a subject that's drawing a lot of comments and we've changed our format lately to allow/encourage more granular discussions. Let's go here: Passat Oil Issues. I've moved some of the recent posts there.

    For those of you who have been having this conversation, should we add fuel and/or turbo to title?
Sign In or Register to comment.