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Sedans Volkswagen Jetta VW Jetta TDI
3581 messages, Last post on Nov 10, 2009 at 12:35 PM
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Replying to: ruking1 (Jun 28, 2009 1:32 pm) If you use the EPA average mpg for the 09 Jetta gasser, why not use the same criteria when comparing to the 09 Jetta TDI? The EPA avg mpg for the TDI is 33mpg, not 38mpg. Where does the 38mpg come from. Is it some kind of official statistic or is it the result of several TDI affectionados. Some TDI owners get substantially better than the EPA avg and I believe there are probably some gasser Jetta owners that get better than the EPA avg as well. I'm not bashing TDIs by any means but I just like to see statements that appear as fact not be backed by a few people that either are hypermilers or close to it. I see one guy on the Camry forum that is consistenty getting 40mpg out of a reg gasser I4 Camry. That is not the norm by any means and is questionable in my opinion. The EPA website has the Jetta gasser getting a little better than the stated avg with 2 drivers reporting. The Jetta TDI has an average of 40mpg with 21 drivers reporting. While that sounds great and I have no reason to doubt them, it is still just 21 drivers out of thousands which may be as small a sample as 1% or less.
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I just got a new Jetta TDI sedan with DSG. Since this is my first diesel I want to break it in right. How should I drive it over the next 1000 miles to get the best results?
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Replying to: m6user (Jun 28, 2009 6:12 pm) I get an average of 42/43 (79%) and I am NO hyper miler. Indeed the thing will not be broken in for  least another 3,000 miles, with 10,000 to 60,000 miles "full" break in. So there is an expectation the mpg will go up from there.
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Replying to: mike91326 (Jun 28, 2009 6:59 pm) Break-In Period |
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Anyone use it? Does it really help with the TDI performance? I know it boosts the cetane in the diesel fuel but does it really work? Is it VW approved?
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Replying to: mike91326 (Jun 28, 2009 6:59 pm) |
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Replying to: ndmike88 (Jun 29, 2009 3:30 am)
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Replying to: ndmike88 (Jun 29, 2009 3:30 am) I do use it primarily for: 1. H20 emulsification 2. fuel pump lubricity These are all chemical reasons I can NOT see. 3. It does boost the cetane, 4. boosts power 5. offers high detergency 6. better mpg 7. cleans injectors and combustion system but I really have to take their word for it. VW's official recommendation: no additves are necessary or required. |
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Replying to: longo2 (Jun 26, 2009 5:46 pm) |
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Replying to: mikemartin (Jun 27, 2009 7:10 pm) I was on the verge (or so I thought) of buying a 2009 TDI, but don't want to be orphaned with a long-term maintenance problem. Maybe it is all a bad dream and doesn't really amount to anything.
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