Hello. Question!
Posting Guru
Joined: Jun 2014
Posts: 959
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From: Medford, OR
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Posting Guru
Joined: Jun 2014
Posts: 959
Likes: 10
From: Medford, OR
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Laughing Gas
Joined: Oct 2017
Posts: 787
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From: Lansing MI
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.
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.
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
DEF is used constantly by the pickup, it is an expendable item. Need to refill it, just watch the gauge
Elder User
Joined: Jan 2004
Posts: 566
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From: Florence SC