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Diesels and DEF #14847103 09/25/23 09:41 PM
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gander Online Content OP
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Those that are using DEF do you have any better suggestions than Peak blue? From what I have read it seems to be a good value. A delete is out of the question until warranty is gone and that will be a few years down the road.

Re: Diesels and DEF [Re: gander] #14847108 09/25/23 09:47 PM
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Walmart brand Super Tech. Used nothing but it when I had my '13 F250 and '20 F250. First truck had almost 100k miles when I sold it and second one had about 60k. Never had an issue.

Re: Diesels and DEF [Re: gander] #14847207 09/25/23 11:39 PM
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jlsbassman Offline
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I have a 2017 Peterbilt with a Cummins engine. I have mostly used the Bucees def from the pump. Had zero issues Def related. Have 180,000 miles on it. I like using the bulk instead of buying the boxes.

Re: Diesels and DEF [Re: gander] #14847387 09/26/23 04:03 AM
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My guess is that DEF is like motor oil, it likely has a minimum spec it has to meet and it doesn’t matter what brand you run so long as it meets spec. As mentioned above, supertech products are actually quite good, I run all of their products and have no issues.

Re: Diesels and DEF [Re: gander] #14847866 09/26/23 05:50 PM
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MarcM64 Offline
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All DEF should be like 67% water and 33% urea. Most DEF systems can detect if it has too much water or if it is contaminated. Pretty sure their is strict guidelines when it comes to the manufacturing of DEF. Unless their is some cheap stuff coming from Mexico!

Re: Diesels and DEF [Re: gander] #14847928 09/26/23 06:46 PM
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Thanks...good info. I may look at buying it at the pump.

Re: Diesels and DEF [Re: gander] #14848004 09/26/23 08:00 PM
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Duke 22 Online Content
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Pump DEF is the simplest and most cost effective way to go.

Re: Diesels and DEF [Re: gander] #14851667 09/30/23 02:59 AM
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Been buying DEF at the pump with no issues. 2020 RAM with 100K+ miles


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Re: Diesels and DEF [Re: Duke 22] #14867492 10/16/23 01:54 AM
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Originally Posted by Duke 22
Pump DEF is the simplest and most cost effective way to go.

Pump def is still hard to find in some places. It’s all the same stuff as long as it meets the proper spec. There should be a number on the bottle. I ran the cheapest stuff I could find and never had any issues.

Re: Diesels and DEF [Re: Hogfan1] #14897861 11/14/23 03:27 PM
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gander Online Content OP
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Where are places to buy DEF at the pump? I contacted Loves truck stop and they have it for a good price per gallon but was told it is sold with a diesel fuel purchase. If that is the case, there won't be much savings as their diesel prices are 80+ cents higher than of stations around here.

Re: Diesels and DEF [Re: gander] #14898347 11/14/23 11:22 PM
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Duke 22 Online Content
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Originally Posted by gander
Where are places to buy DEF at the pump? I contacted Loves truck stop and they have it for a good price per gallon but was told it is sold with a diesel fuel purchase. If that is the case, there won't be much savings as their diesel prices are 80+ cents higher than of stations around here.

I just roll up to the truck lanes at the truck stop, swipe my card and pump. At Loves sometimes I have to go in and pay a specific amount like $50 and then go out and pump whatever it takes to fill up and they credit back the difference.

Re: Diesels and DEF [Re: gander] #14898441 11/15/23 12:42 AM
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Bucee's has DEF pumps.


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Re: Diesels and DEF [Re: gander] #14900877 11/17/23 12:03 AM
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I went to the Quik Trip by my house. They have DEF at the 18 wheeler pumps. However, the nozzle is too large for the DEF fill on my truck. It’s a lot cheaper, about half the cost.


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Re: Diesels and DEF [Re: Fishspanker] #14901128 11/17/23 11:08 AM
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Originally Posted by Fishspanker
I went to the Quik Trip by my house. They have DEF at the 18 wheeler pumps. However, the nozzle is too large for the DEF fill on my truck. It’s a lot cheaper, about half the cost.
QT in my town does not have 18 wheeler pumps. So I will try Bucees next time I am near one.I suppose In your case you could fill up a fresh 5-gallon container and then put into your truck.

Re: Diesels and DEF [Re: Chris B] #15114674 06/29/24 08:50 AM
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Only at some Buc-ee’s not all of them carry it

Last edited by bigfishwilb; 06/29/24 08:50 AM.

Patrick Wilbricht
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