CalDrvr
New member
Flying J Service Plaza's have this fluid available at the pump in a lot of locations nationwide. They are adding locations almost daily...
Cost is around $2.75 per gallon.
Cost is around $2.75 per gallon.
Great price.Cost is around $2.75 per gallon.
Good grief.Make sure it meets VW spec otherwise your emissions equipment will be destroyed!!!!!
No. There is a separate tank for DEF.May be a dumb question, but I'm still learning...
Would this be added to the fuel system just like an additive?
Awesome, now I look like a genius! lol.No. There is a separate tank for DEF.
Your 2010 Jetta doesn't use it. Do not add it to your fuel tank.
Sorry, i guess my sarcasm was a bit weak, i ment my comment as a joke.
Been noticing alot more OTR trucks with DEF tanks.Look on the new class 8 vehicles(tractor trailer)-a fairly new Kenworth backed in next to me today and I noticed a tank w/ blue cap-cap had "DEF" imprinted on it,then I noticed the tank had "Diesel Exhaust Fluid" molded directly into tank just above cap-the fill cap was located about 2/3 of the way up from bottom on the side. Looks like tank would hold 20-25 gallons. Next time I see driver I'll ask him how often he fills it. I don't see any of those DEF pumps at smaller stations...yet.
Thanks for the info!Paccar (Peterbilt & Kenworth) trucks come with either 9, 18, or 27 gallon DEF tanks based on total fuel capacity. The EPA mandate was that the DEF tank be sized such that it had a minimum capacity to allow two full fuel fill-ups for every DEF fill-up. The original estimations were based on 5% DEF usage relative to diesel consumed. Actual usage is closer to 2% DEF on Cummins powered units. Thus they can come closer to filling up the DEF tank every third fill-up with diesel. However, keep in mind that DEF dosing is not linear and could vary based on levels of NOx produced.
With regards to the comment that DEF is DEF is DEF, most folks don't know how true that is. DEF is comprised of 32.5% Urea and 67.5% deionized water. Nothing else. Approximately 1 tablespoon of contaminant will corrupt a batch of 4800 gallons of DEF to the point that is no longer pure enough to meet the ISO 22241-1 requirements.
If you only use a sealed container, and fill the DEF tank properly, there's little chance for contamination.
Must be just you - DEF certainly isn't expensive!Is it just me or does this DEF stuff sound expensive and easy to contaminate?
You better believe it.Would the system know if you filled the DEF tank with distilled water...?
no, it knows the *effect*. How long will that take?
There is a NOx sensor right after the SCR, it will know immediately that DEF is not in the system by virtue of elevated NOx output.how will the system *know*that DEF is not present?
And regress to a less efficient design that utilizes a ton of EGR and post injection? No thanks.I say, "Bring on the Skyactiv-D" and forget the DEF already.
df