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Jul 7, 2018 | 12:45 PM

Shockwave88

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Hello. Question!

I have a question. This Pop up on the screen by the direction
What ia this Name: photo402.jpg
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Jul 7, 2018 | 12:52 PM

geereed

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From: Huntsville Utah

Exhaust brake is on.

Jul 7, 2018 | 12:54 PM

crewzer

Logistics Pro

Joined: Apr 2000

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From: Mills River

I believe its a warning indicator for low or contaminated DEF.

HTH,
Jim / crewzer

Jul 7, 2018 | 01:02 PM

k7lvo

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From: Medford, OR

Low def. See the same symbol in white below the def gauge at the top of the picture?

Jul 7, 2018 | 01:05 PM

Shockwave88

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Okay now I see
Thanks. When do usually people change it

What the purpose of having def

Jul 7, 2018 | 01:10 PM

xxxsherpa

Fleet Mechanic

Joined: May 2017

Posts: 1,382

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Change it when you change the blinker fluid.

Jul 7, 2018 | 01:11 PM

k7lvo

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From: Medford, OR

You don’t change it, you add it. Notice that the def gauge is showing 1/8 full. The tank holds 7.5 gallons and the truck gets 500-1000 miles per def gallon, depending upon load, etc. it’s part of the emissions control.

Youre dealer should have included this in the "orientation."

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Jul 7, 2018 | 01:14 PM

MPawelek

Senior User

Joined: Apr 2018

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You don’t Change the DEF, you add more to the DEF tank. Next to the diesel filler cap is a smaller blue cap. That is where the DEF is added.

Jul 7, 2018 | 01:24 PM

#10

Shockwave88

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When do you usually add

Jul 7, 2018 | 01:45 PM

#11

harmanrk

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From: Lansing MI

Quote:

Originally Posted by Shockwave88

When do you usually add

As with most things. When it's time. And since the light is on, its time.

Most refill the tank when they change the oil. As was said above, about 1000 miles per gallon on the DEF, so 7.5 gallons is 7500 miles.

Jul 7, 2018 | 01:59 PM

#12

grngiant

Junior User

Joined: Sep 2010

Posts: 53

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From: In a house.

I usually grease the muffler bearings at the same time I add blinker fluid.

Jul 7, 2018 | 09:07 PM

#13

Cohlmeyer

Senior User

Joined: Apr 2018

Posts: 168

Likes: 2

A more ideal situation would be to not let it get below a quarter of a tank, to prevent it from sucking in debris that may be in the tank or taking the truck into “limp” mode.

DEF is used constantly by the pickup, it is an expendable item. Need to refill it, just watch the gauge