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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 May 1st, 2020, 14:22   #1
Tom in PT
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Join Date: Jun 2017
Location: Twilight Zone, WA State
Fuel Economy: 30-48 mpg in '05 ; up to 53 in '13
Default DEF fluid - hardly using any

I just did an oil change in my '2013 Passat and filled up the ad-blue tank. My consumption of DEF fluid is less than one quart in almost 5,000 miles.

This is about the same or a bit less than what my car was using since Day 1 when I bought the car new.

I thought post-fix the DEF fluid consumption was supposed to go up. My car had the fix in 2017 and I have since seen the DEF consumption go down if anything.

Is my driving style (driving gently, light throttle, maximizing mpgs) a possible explanation?
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Old May 1st, 2020, 14:37   #2
ticaf
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Location: baltimore, MD
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Sounds about right to me since you drive for mpg.
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Old May 1st, 2020, 15:17   #3
hitman1985
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Quote:
Originally Posted by Tom in PT View Post
I just did an oil change in my '2013 Passat and filled up the ad-blue tank. My consumption of DEF fluid is less than one quart in almost 5,000 miles.



This is about the same or a bit less than what my car was using since Day 1 when I bought the car new.



I thought post-fix the DEF fluid consumption was supposed to go up. My car had the fix in 2017 and I have since seen the DEF consumption go down if anything.



Is my driving style (driving gently, light throttle, maximizing mpgs) a possible explanation?
I'd have to agree; I've driven 12k miles in 18 months of owning a 12 Passat with the ckra motor; have yet to see an announcement of the adblue needing to be filled or checked. However I'm still one stage short of the kill-the-tdi movement fixes... if you drive somewhere to what a turbo diesel motor is meant to be operated like then you shouldn't use much of it.

Side note on this adblue topic; my Passat stinks like horrid when idling for a bit longer which clearly indicates to me the system works. I plan to remove the whole system all together at some point in the future if I decide to keep the car that is.

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