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Old 10-15-2015, 05:34 PM   #31
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I believe adding DEF, freshens the older amount in the tank. I put on 34,000 miles in 2 1/2 years which means that I am moving a lot of DEF. Others may have longer periods of standing still. DEF has been covered previously and storing at elevated temperatures, shortens its life. - Hank
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Old 10-15-2015, 05:55 PM   #32
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Anyone know the capacity of the tank on our Berks? I was able to put a total of about 8 gallons total in before it overflowed.

Also, I'm going to investigate a way of temporarily "cheating" (GASP) the sensor, in case I ever run out again. May not be possible, but if it is would be a great way to limp into a place to buy DEF.

Boowho??
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Old 10-15-2015, 06:08 PM   #33
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Boo,
The DEF tank on the Berkshire holds 13 gallons.
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Old 10-15-2015, 06:10 PM   #34
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Anyone know the capacity of the tank on our Berks? I was able to put a total of about 8 gallons total in before it overflowed.

Also, I'm going to investigate a way of temporarily "cheating" (GASP) the sensor, in case I ever run out again. May not be possible, but if it is would be a great way to limp into a place to buy DEF.

Boowho??


(def delete)

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Old 10-15-2015, 06:13 PM   #35
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Boo,
The DEF tank on the Berkshire holds 13 gallons.
I thought so.... something ain't kosher here. After the engine quit, I was only able to get 8 gallons in before it overflowed.

That means there was still 5 gallons in the tank, that was unavailable to the engine.

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Old 10-15-2015, 06:51 PM   #36
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something ain't kosher here.

That means there was still 5 gallons in the tank, that was unavailable to the engine.

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Old 10-15-2015, 08:18 PM   #37
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Sounds like a call to FL is in order.


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Old 10-15-2015, 08:43 PM   #38
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But how do you know when it's full ???

My 2015 coachman Prism 2150LE has no gauge and my DEF tank and fill tubes are opaque. I don't want to run the risk of a 'blind' top-up and have the fluid come screaming up the fill tube then splashing the corrosive fluid all over the engine compartment.

Some say not to worry and just add fluid when low/empty warnings happen. Sure. Risking limited engine starts, 5 MPH maximum speed or even shut-down while giving unreliable and hard to access indication of DEF level is just plain stupid. Shame on you MBenz

I'm considering drilling a hole in my DEF tank and using some kind of 'dip-stick' to check the DEF level. Any ideas?
DEF fluid isn't corrosive it's a clear liquid. It will leave a white residue that will wash of with plaln water. WONT HURT PAINT on your truck or RV if you are worried about skin contact wear rubber gloves I do all the time for the diesel fuel. On the RAM it's next to the fuel fill. DO NOT PUT IT IN YOUR FUEL TANK at least a 10k repair.
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Old 10-15-2015, 08:53 PM   #39
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(def delete)


Huh??

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Old 10-15-2015, 08:55 PM   #40
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Sounds like a call to FL is in order.


Wayne
YEP.

I missed the call, but the help line did call me for a status today.

Will talk to them tomorrow.

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