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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW Passat Family (NMS and B7) TDIs (2012+)

VW Passat Family (NMS and B7) TDIs (2012+) Discussion area for the 2012+ Passat TDI (North American and rest of world versions versions). The North American model was previously codenamed NMS (New Midsize Sedan) and the version the rest of the world gets is sometimes referred to as B7.

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Old November 20th, 2011, 10:09   #61
mountain-valleymotors
 
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Originally Posted by 740GLE View Post
Also the engine needs to be spinning in order to produce power, I can't drive around in 6th gear doing 30mph and expect to get 100MPG.

Placing a larger gear won't always equal better MPGs.

The only reason we're seeing 7 and 8 gear automatics is to keep the RPMS in in ideal range for that extra 1mpg. But sadly that also means the trany will "hunt around" and shift all over the place while driving, and doing this on hill get really old real quick.

Remember these are just small 2.0L engines that need to spin to get to 60MPH, not a 6.2L V8 that produces practically enough torque at idle to do 60MPH.
This is so true. I have a 2006 Duramax Diesel truck with a 6 speed Allison automatic which actually has 2 overdrives. When I am pulling any kind of load, I get better fuel mileage if I hold the transmission in 5th rather than letting it shift into 6th. The reason for this is that by increasing the rpms 300-400 the turbo is able to make an additional 8-10 pounds of boost while cruising which in turn makes the burn more efficient. Now when I am empty it works the other way because the extra power is not needed and there is very little fuel called for so not as much need for the additional air to make it burn efficiently.
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Old November 20th, 2011, 10:11   #62
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Its all about finding the sweet spot for a particular engine under a particular load. Which is why I would prefer a fully manual trans with at least the possibility of slightly lower RPM's at cruising speed.
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Old November 20th, 2011, 16:00   #63
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You'd be getting 10-20% less MPG and the extra wear and tear for what? same performance you'd get with good snow tires?
Tryin lives in WV, so can't blame 'em.
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Old November 21st, 2011, 05:01   #64
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Tryin lives in WV, so can't blame 'em.
Yep, WV winters can be interesting for sure. I live about a mile up a state maintained road, that seems to be the last on the list as well. We usually end up doing the plowing on our own but there are occasions, such as coming home from work after a full day of snow, that we are driving in 6-8 inches of unplowed snow. I run dedicated snows in the winter and have still have had to park at the bottom of the hill and walk home, really doesn't bother me but the wife. She want's the suv back because of the AWD. Snow tires are great on the main raods, but there is no substitute for four wheels pulling when you have to go up steeper hills in bad conditions.

I agree that on packed snow covered roads, I see little advantage to 4 wheel drive. I've got 4 new Blizzaks coming for the Passat though.

Back on topic, wife took the passat to Charlotte this weekend, driving pretty much 75 mph the entire trip, got 45 mpg! Try that in an SUV, or any other car for that matter!
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Old November 21st, 2011, 07:17   #65
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Back on topic, wife took the passat to Charlotte this weekend, driving pretty much 75 mph the entire trip, got 45 mpg! Try that in an SUV, or any other car for that matter!
That's great and sounds about right for 75mph on the highway....Hey, according to my MFD I got 51mpg this morning on my 50 mile commute, most of the time speed is limited between 60-75mph though, with some stop & go/city stuff.
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Old November 22nd, 2011, 11:23   #66
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2nd tank: avg. 4.8 L/100km (49 US mpg / 58.85 imperial mpg)
Best hwy avg so far: 4.1 L/100km (57.37 US mpg / 68.90 imperial mpg)

Last edited by thegradas; November 22nd, 2011 at 11:32.
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Old November 22nd, 2011, 12:16   #67
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2nd tank: avg. 4.8 L/100km (49 US mpg / 58.85 imperial mpg)
Best hwy avg so far: 4.1 L/100km (57.37 US mpg / 68.90 imperial mpg)
That's great, and believable based on what I am seeing on mine.....how fast are you driving and what is the terrain/driving conditions like?
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Old November 22nd, 2011, 12:32   #68
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Speed: mostly 62-64 mls/h
Terrain: mostly flat, few hills
Weather: 32-39 F
Other: Michelin X-Ice Xi2 winter tires, dry road


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That's great, and believable based on what I am seeing on mine.....how fast are you driving and what is the terrain/driving conditions like?
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Old November 22nd, 2011, 12:59   #69
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Speed: mostly 62-64 mls/h
Terrain: mostly flat, few hills
Weather: 32-39 F
Other: Michelin X-Ice Xi2 winter tires, dry road
Yeah 62-64mph, my wife took the car on a trip on slight rolling country roads where her speeds were mostly 60-63mph and she was averaging 53+mpg, which included some traffic lights/stop signs, etc...
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Old November 24th, 2011, 07:39   #70
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Are you all glad you chose the 6-spd MT? I hope to pick one up very soon.
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Old November 24th, 2011, 09:34   #71
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It looks like the Passat TDI does have better FE than the Golf and Jetta TDI. 4.1-4.5l/100km is an unbelievable figure for such a large car.

I hope VW sells a tons of these.
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Old November 24th, 2011, 09:51   #72
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Are you all glad you chose the 6-spd MT? I hope to pick one up very soon.
I really love my 6M, I thought I would miss the DSG but 90% of the time I prefer the 6M.
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Old November 25th, 2011, 17:36   #73
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Just completed a 638 mile trip with 6M. 75mph most of the way. 14.819 gallons for 43mpg. I suspect winter fuel at this point.
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Old November 26th, 2011, 16:16   #74
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I had a little break from my normal 30 mpg, 4 mile commute today. I drove a relative to a train station 36 miles away, mostly highway. I drove at the speed of traffic, typically 70ish in 65 zones, 64 in 55 zones, with cruise on much of the time. With an average speed of 49 mph, average mpg was 48.0. I got really close to 50 average on the way there, 49.4. Less traffic and a slight downhill grade that way. This is an easy 50's mpg car for those motivated to annoy other drivers slightly.
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Old November 27th, 2011, 02:03   #75
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Picked up mine today and drove it 150 miles home at 60mph. MFD indicated an average of over 55 mpg! I am so glad I chose the 6-speed MT. Love the car!
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