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8143 messages,  Last post on Nov 27, 2009 at 12:10 PM

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#7716 of 8143
Re: Diesel Audi Q7 TDI [avalon02wh] by gagrice
Jun 15, 2009 (7:34 pm)
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Replying to: avalon02wh (Jun 15, 2009 7:15 pm)

The V6 TDI in the Q7 is the same basic engine offered in the Touareg TDI. All 3 of the 6 cylinder diesel SUVs are in about the same power range. It is possible the guy driving the Q7 was not interested in saving fossil fuel. We know from tests that even the Hybrids like the Prius can be forced to get very low, under 30 MPG mileage if there is a concerted effort to hotrod them. I got a feeling a person cruising at 70 MPH across country in the Q7 should be able to get near 30 MPG. At least 27 MPG. For a vehicle that weighs in over 5500 lbs that is not bad mileage. My biggest complaint about all three companies diesel SUVs is the Urea injection. Whatever it takes to please the crooks running California.
 
Just a note. The BMW is by a quite a bit the most responsive and has the highest torque rating. I would assume that is the inline 6 which is a better configuration than the V6. Not sure why MB abandoned their proven inline 6 for the V6 engine.
#7717 of 8143
Re: Diesel Audi Q7 TDI [avalon02wh] by ruking1
Jun 15, 2009 (8:08 pm)
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Replying to: avalon02wh (Jun 15, 2009 7:15 pm)

Well no ! It was more like spot on.
 
Since diesels are fairly uncommon, most testers being used to gassers, do not drive turbo diesels correctly. Indeed a lot of testers make it a point to compare a diesel with a gasser (gasser being the "standard"). They also usually mention these obligatory things:
 
1. doesn't stink like diesels of old (oh please)
2. they took the marbles in the can noise out
3.you can actually get diesel fuel
4. ZERO to sixty is slower in a diesel.
5. do you want fries with that?
 
( Gee this almost sounds like a David Letterman routine)
 
You almost NEVER read about driving a diesel within its parameters.
 
So for example, another reason why I did not get the Prius (as I was well introduced and schooled into the correct driving procedures to get "close to EPA"), I just didn't want to drive the Prius the way it had to be driven (day in day out) to achieve the desired results. So my issues were not with Toyota and/or Prius.
 
Contrast that with the TDI with 118,000 miles. It still amazes me I can drive 90 mph and still get 49/50 mpg !! When I drive 75 mph with bursts to 80/85 it returns 56/59 mpg. Other than knowing and staying within the operating parameters of the turbo diesel, as you probably would agree, I do not use hypermiling techniques. The other interesting thing is if you drive a diesel like a Prius should be driven, it almost always results in much higher mpg for the diesel.
#7718 of 8143
GTD by ruking1
Jun 17, 2009 (5:30 pm)
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link title
#7719 of 8143
Re: Diesel Audi Q7 TDI [gagrice] by alltorque
Jun 18, 2009 (1:38 am)
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Replying to: gagrice (Jun 15, 2009 7:34 pm)

Here in the U.K. the Q7 3.0 TDi is quoted at 27.2mpg Imperial on the EU Combined Cycle, the VW Touareg 3.0 TDi is rated at 25.9 on the same basis so neither is exactly "frugal", (nor are they "guzzlers"). But, as has been pointed out, they are big, heavy vehicles and there is always a price to be paid for hauling metal. To get a feel for the "Highway" mpg you could always Google Audi UK and look at the numbers.
 
Of the Q7's locally, all are TDi's; not a single gasser to be seen...........so no surprise there, then.
#7720 of 8143
Re: Diesel Audi Q7 TDI [alltorque] by gagrice
Jun 18, 2009 (6:01 am)
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Replying to: alltorque (Jun 18, 2009 1:38 am)

Of the Q7's locally, all are TDi's; not a single gasser to be seen...........so no surprise there, then.
 
What is stupid, is the fact that all large SUVs in the USA are not diesel. The UK saw the potential to save fossil fuel and did not get in the way. Here the EPA, CARB, Congress and the lobbyist that own them have made a concerted effort to keep diesel SUVs out of our market. All you have to do is go test drive a new BMW X5 Diesel to be sold. I have not driven the Touareg or Q7 TDI yet.
 
It would take the wind out of the sails of the crowd that bemoans our waste of fossil fuel. If a Mercedes diesel full size SUV gets 30 MPG out on the road it is about the same as a CamCord V6. Why would anyone want to drive a CamCord if they can get the same mileage in a solid SUV?
#7721 of 8143
Re: GTD [ruking1] by ruking1
Jun 18, 2009 (7:10 am)
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Replying to: ruking1 (Jun 17, 2009 5:30 pm)

This is an duplicate on purpose. For whatever reason msg #7718 (delete msg # 7718) did not take the linking procedure.
 
link title
 
The 2010 Golf Turbo Diesel, would be my choice for a slightly smaller and sportier car, than the Jetta TDI, if I had to get "the next" car. If the rating systems are the same, the GTD gets combined "44 mpg" ( vs 34 mpg for the Jetta TDI) , AND has more hp & torque !!
 
Since we get (so far) 39-45 mpg on the Jetta TDI, using similar ratios; I suspect we would have no issues getting 50.5 -58.21 mpg in the GTD, Golf Turbo Diesel. less than 20k (MSRP), why get a Prius, that is app $7,270 more?
 
D2 $ 2.75 per gal (current corner store price) will buy 2,643.64 gals *44 mpg = 116,320 miles of commuting.
#7722 of 8143
Re: GTD [ruking1] by gagrice
Jun 18, 2009 (1:54 pm)
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Replying to: ruking1 (Jun 18, 2009 7:10 am)

I like the looks of the new Golf GTD. I took my Sequoia in for an oil change to my local mechanic. There was a late 90s Jetta TDI parked there. I asked if he works on the TDI. He does and that is his wife's Jetta. They bought it used in 1999 with 12k miles. It now has 206k miles and he claims the most reliable car he has ever owned. He loves driving it and never gets less than 40 MPG.
#7723 of 8143
Re: Diesel Audi Q7 TDI [ruking1] by john1701a
Jun 19, 2009 (3:16 am)
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Replying to: ruking1 (Jun 15, 2009 8:08 pm)

...I just didn't want to drive the Prius the way it had to be driven (day in day out) to achieve the desired results. So my issues were not with Toyota and/or Prius.
 
Past tense says it all.
 
The 2010 model changes the rules. Setting the cruise on the highway and seeing 55 MPG as the result is the situation now. Slow down, the MPG can hit 60.
#7724 of 8143
Re: Diesel Audi Q7 TDI [john1701a] by ruking1
Jun 19, 2009 (7:15 am)
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Replying to: john1701a (Jun 19, 2009 3:16 am)

..."Past tense says it all."...
 
I would totally agree with you, especially with a 2003 Jetta TDI. No cruise 75 mph with bursts to 80-85, sees 59 mph. A little more "frisky," 56 mpg. To keep with the flow of traffic on CA freeways, 50 mpg is a no brainer.
 
When the Highway Patrol consistently passes you 80-85, you might be going a tad...slow. But not to worry. You can at your option, go 40-45 mph. You also can literally ( flip on your 4 way flashers) and (legally) go even slower (aka, rolling 2 lane (min) obstruction). They will literally pass you with a greater speed.
 
To see 60 mpg is not hard. For me however, I risk road hypnosis. When you add to the bevy of fully loaded tractor trailers trying to make you their nose pieces... no appealing options.
 
I am currently working on my 2nd 100,000 miles interval. I did have th change the tires at 112,300 miles. This is purely a swag, but I sense the "weak" clutch will far exceed the 400,000 miles best guess average estimate.
 
Fuel mileage above the current standards 27 mpg and 22 mpg defacto, have clearly been completely and utterly meaningless. If it were meaningful, (among hosts of other things) Prius' would be selling in far greater volume and percentage of total vehicle fleet than it has for the last 8 years that I know of. They would have literally not severely limit to outright outlawed diesels getting 50 mpg .
 
I am glad you agree again,.... in the future....
 
..."I suspect we would have no issues getting 50.5 -58.21 mpg in the GTD, Golf Turbo Diesel. less than 20k (MSRP), why get a Prius, that is app $7,270 more?
  
D2 $ 2.75 per gal (current corner store price) will buy 2,643.64 gals *44 mpg = 116,320 miles of commuting."...
 
This is a virtual apples to oranges comparison also: pocket rocket vs banana slug. So how much to B/E from $7,270 51 mpg vs 59 mpg?
 
Keep in mind the VW POLO might be coming in 2010/2011 60 mpg and even less than 20k... Again.... So... how much to B/E from even more than $7,270 60 mpg vs 59 mpg?
 
As an op/ed since you post continually on the diesel thread, you don't see 50 state legal diesels as the .... enemy. BUT... I could be wrong!!??
#7725 of 8143
Re: GTD [ruking1] by houdini1
Jun 19, 2009 (10:53 am)
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Replying to: ruking1 (Jun 18, 2009 7:10 am)

I wonder if we will get the Polo diesel?

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