DEF level sensor issue

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Tinbadtin

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That sounds excessive. I've only put in 3 and I'm at 25K miles.
What’s your MY? Mine is a 22 produced in May of 2022.

Demonworks on YouTube who has owned every MY duramax pickup so far (20-23) said that the newer ones drank more DEF, especially the LZ0’s but I wonder if GM changed anything in the programming along the way and that later built LM2’s drink more DEF too…
 
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RK58

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I will update again after the trip back to the dealership, I just want a level reading on my DIC like the way it was built and not worry when I will get the low level alert.
 

Stbentoak

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What’s your MY? Mine is a 22 produced in May of 2022.

Demonworks on YouTube who has owned every MY duramax pickup so far (20-23) said that the newer ones drank more DEF, especially the LZ0’s but I wonder if GM changed anything in the programming along the way and that later built LM2’s drink more DEF too…
It doesn't say in my signature?
 

Stbentoak

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That sounds like a dream. Ours uses 1 gallon per 1000 miles unburdened, 1 per 200 miles towing.
I guess you would have to get more data points of reference. 1 gallon per 1000 miles sure seems excessive to me unloaded. I maybe have gone thru 9 gallons max in 25K miles. all is working fine....
 

Tinbadtin

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Well, at least good to hear mines not an anomaly. @Stbentoak I assume yours is a 21? I wonder if that has something to do with it or the programming. Would be nice to get more data points from other forum members.
 

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