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Customer reviews for BlueDEF Diesel Exhaust Fluid (2.5 gal.) for
BlueDEF Diesel Exhaust Fluid (2.5 gal.)
4.8 out of 5 stars
stars1,224 ratings485 reviews
  1. 5 stars89% (1,092)
  2. 4 stars6% (71)
  3. 3 stars2% (20)
  4. 2 stars1% (7)
  5. 1 star3% (34)

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Showing 401-410 of 485 reviews
Jan 22, 2017
Oldschool
5 out of 5 stars review

Verified Purchase

DIF

Will purchase again

Review from walmart.com
Helpful?1JBVD4G0ZA077480403211
Feb 11, 2024
Wanda
5 out of 5 stars review

Verified Purchase

Diesel additive

Diesel additive

Helpful?1JBVD4G0ZA077480403211
Jun 28, 2022
WVMomma
5 out of 5 stars review

Verified Purchase

Price can’t be beat

Cheapest price around. Everyone else was asking double the amount for the exact same product

Helpful?1JBVD4G0ZA077480403211
Jun 19, 2025
Robert
5 out of 5 stars review

Great Product Great Price

Great product and the best price in town. Somerset Walmart Auto Care Center continues to do an exceptional job!

Review from walmart.com
Helpful?1JBVD4G0ZA077480403211
Oct 8, 2014
gary51m
5 out of 5 stars review

Love paying for water.

I haven't bought it at Wal-Mart yet but probably will since they carry it. I just bought 2 boxes from Amazon at the same price. I just bought my diesel truck and have never had to do this before. Was a little upset when I found out that it is approx. 67.5% water. Would be better if we could just buy the urea and add the water.

Review from walmart.com
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May 8, 2012
YumeisLuck
4 out of 5 stars review

Good Value, Somewhat Ackward to use

A bit tricky to avoid some spillage when filling a vehicle with the def tank filler positioned relatively high. I've used the one gallon container for this same product and found it preferable to the 2.5 gallon for my situation and only slightly more expensive. Wish my Walmart stocked the one gallon version.

Review from walmart.com
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Dec 24, 2023
Jerry
1 out of 5 stars review

Worst jug ever designed.

You would hope with the big brand and most expensive DEF out there that the packaging would not be so terrible but you would be wrong. Don’t get me wrong not only does this brand have bad packaging all the other ones do also. The screw on pour straw always leaks and never lines the breather port up towards the top. The only chance you have of not getting this all over you and the truck is to cut a hole in the back of the plastic jug. Once you do this less will drip out on you and the truck but don’t worry it will still leak. We all have to use this dumb stuff can we at least make a jug that doesn’t leak 100% of the time?

Review from walmart.com
Helpful?1JBVD4G0ZA077480403211
Mar 7, 2019
Kiler4x
4 out of 5 stars review

Please fix the leak PEAK

This stuff is good as any I suppose. The BIG problem is no matter what you do, it leaks each and every time. I have tried and tried to screw the nozzle on and no matter what, it leaks. This liquid crystallizes and creates a huge mess. After adding, you absolutely have to rinse with water or you will have a mess on your hands.

Review from walmart.com
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Aug 13, 2024
CCG03
5 out of 5 stars review

KEEPING EMISSIONS CONTROLS SYSTEM HAPPY

Was very happy I happened to turn down the automotive isle and see this DEF product, which I needed and at a very reasonable price point for this 'name-brand' DEF in the big jug. Great job Sam's Club!!! My TDI vehicle requires two of these jugs when the refill alert pops up, so yeah, I'm very happy Sam's has this in stock at club and it shows as available for shipping too.

Helpful?1JBVD4G0ZA077480403211
Jan 30, 2019
BuyingForKids
5 out of 5 stars review

Blue DEF is the Best DEF

This Blue DEF is extremely convenient for both storage and usage. The cube boxes allow them to be stacked and sat side by side very easily. Further, the design allows for easier dispensing into our fleet of vehicles (currently 20 vehicles). We had issues with the Ford branded DEF crystallizing during storage, which we have not had with this. Plus, the pricing at Wal-Mart is awesome.

Review from walmart.com
Helpful?1JBVD4G0ZA077480403211