Walmart / Supertech DEF
Aug 21, 2023 | 05:08 PM
Joined: Jul 2016
Posts: 103
Likes: 36
From: MI
I fill up at truck stops. 10 cents off a gallon of diesel and 3.79 cents a gallon for DEF. $32 for 8 gallons of DEF at Love's
Aug 23, 2023 | 05:54 PM
Joined: Feb 2023
Posts: 106
Likes: 56
How old is too old DEF? Is there a shelf life?
Aug 23, 2023 | 06:16 PM
Joined: Dec 2020
Posts: 8,636
Likes: 2,431
Quote:
Originally Posted by
Smurf830
How old is too old DEF? Is there a shelf life?
Shpuld be 1-3 years.Temperature can have a big effect on that. The hotter the temps, the lower the shelf life.
Ford info attached
Aug 23, 2023 | 06:19 PM
Joined: Apr 2021
Posts: 87
Likes: 82
used it in my 2016 for 5 years with no issues.
Aug 23, 2023 | 07:12 PM
Joined: Jul 2010
Posts: 1,155
Likes: 31
From: Idaho
walmart def on two trucks 200k no def issuse except for a recall on the def heater when i lived in San Diego
Aug 23, 2023 | 08:15 PM
Joined: Mar 2023
Posts: 80
Likes: 55
From: Mount Vernon, WA
I personally will buy my Peak Blue DEF from Costco.
Aug 24, 2023 | 12:53 PM
Joined: Jul 2021
Posts: 488
Likes: 249
From: Northwest FL
I've used SuperTech DEF every time except for maybe two or three tanks I've gotten from the pump while traveling. 2022 F-250 with about 14K on the clock. No issues.
Aug 24, 2023 | 12:58 PM
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
Quote:
Originally Posted by
jr_nicholson
I fill up at truck stops. 10 cents off a gallon of diesel and 3.79 cents a gallon for DEF. $32 for 8 gallons of DEF at Love's
Same here. I don't know of any benefit from using any ultra-super DEF.
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Aug 24, 2023 | 02:40 PM
Joined: Feb 2022
Posts: 7,955
Likes: 4,039
Have never lifted a jug of the stuff, always filled it at the truck stops, after wiping the pump off. Cost less at the pump and doesn't take up any room.
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