way2roll
Wilmington NC
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Joined: 10/05/2018
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I had been buying BLUE DEF for the past year. "Gold star, premium, blah blah blah..." Recently at the auto parts store the clerk showed me they had FRAM Def. It was literally half the price. So I bout 2 jugs, put them in and have been running it now for over a month. Today at the same auto parts store someone was buying BLUE and I tipped him to my recent find. To my surprise, another clerk said not to buy the FRAM brand that it can cause issues? I was like, wha..? Then why are you selling it? In all my research everything says that DEF is DEF is DEF provided it has the right percentage of urea to water. I mean, it's just atomized into your exhaust to neutralize harmful emissions. So is fancy DEF any better than house brand stuff? What about DEF at the pump - who knows what brand that is.
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IdaD
Idaho
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Joined: 08/06/2014
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DEF is DEF. Pump, Supertech from Walmart or Peak. Just my opinion.
I use Peak for the most part but that's just because Costco carries it and I'm there weekly for groceries/etc. and don't have to make a special trip to Walmart or a pump. The convenience is worth a few bucks extra. It's $10 a few times a year, which means nothing.
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agesilaus
North Florida
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Joined: 05/06/2008
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I'm a retired chemist and we used to buy DEF by the tank car load. It's all the same the $8 stuff is the sames as the $20 stuff.
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ktmrfs
Portland, Oregon
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yes, DEF is highly regulated in the formula. Every mfg must follow the same formulation.
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Lwiddis
Near Bishop, California
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"DEF is highly regulated in the formula" x2
Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AMP Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad
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FishOnOne
The Great State of Texas
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Joined: 02/12/2011
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Link
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2oldman
Nevada
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Joined: 04/15/2001
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"The main component that sets brands of DEF apart from each other is the level of purity in the product. DEF fluids all must meet an international standard and standards from the EPA that measure the purity of this fluid. Only purchase a DEF that meets the ISO 22241 standard."
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Bionic Man
Colorado
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Joined: 04/03/2009
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I use the stuff from Walmart that is about 1/3 the price of Peak. If you really want Peak, find them on instagram and you can print a $5 rebate per box, through 1/10/22.
2012 RAM 3500 Laramie Longhorn DRW CC 4x4 Max Tow, Cummins HO, 60 gallon RDS aux fuel tank, Reese 18k Elite hitch
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FishOnOne
The Great State of Texas
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Joined: 02/12/2011
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I think the bigger story is the shortage of DEF due to Urea and China holding back shipments of this raw material. The next big story will be a shortage of fertilizer.
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#1Flyboy
California
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Joined: 09/08/2005
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62,000 miles on Walmart DEF; no codes, no issues…. As a side note I used to purchase Truckloads of “ No Brand Name “ antifreeze,but, was actually Prestone Brand…. Saved my customers a bunch of money…
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