BlueDEF Diesel Exhaust Fluid (2.5 gal.)
Item # 531500
Members-only price
Prices may vary in club and online
Shipping
Free for Plus on eligible orders over $50
Columbus, 43215
Return or replace anytime.
Get a $30 statement credit¹ when you open an account 9/1-9/30/26 + learn how to earn 10% back on fuel for a limited time‡ See details
Highlights
- Non-toxic; non-flammable; non-polluting
- For diesel SCR engines
- New nozzle makes pouring easy
We also recommend
Rotella T4 Triple Protection 15W40 2-pack/2.5 gallon bottles $93.98 $46.99/ea
$9398
current price $93.98$46.99/ea
Rotella T4 Triple Protection 15W40 2-pack/2.5 gallon bottles
4.7254 out of 5 stars
Sponsored
Hero image 0 of BlueDEF Diesel Exhaust Fluid (2.5 gal.), 0 of 5
Members also considered
Shell Rotella T4 Triple Protection 15W-40 Diesel Engine Oil6-pack/1 gallon bottles $110.98 $18.50/ea
Sponsored$11098current price $110.98$18.50/eaShell Rotella T4 Triple Protection 15W-40 Diesel Engine Oil6-pack/1 gallon bottles
7964.8028 out of 5 Stars. 796 reviews4.8028 out of 5 starsAvailable for ShippingShippingMobil Delvac 1300 Super Heavy Duty Premium Synthetic Blend Diesel Engine Oil 15W-40 4, 1-gallon bottles $53.48 Was $66.98 $13.37/ea
Instant Savings
Now$5348current price Now $53.48, Was $66.98$66.98$13.37/ea$13.50 offEnds Sep 20Mobil Delvac 1300 Super Heavy Duty Premium Synthetic Blend Diesel Engine Oil 15W-40 4, 1-gallon bottles
10144.8402 out of 5 Stars. 1014 reviews4.8402 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingPeak Windshield Wash and Deicer - 1 gal. bottles - 6 pk. $25.98
$2598current price $25.98Peak Windshield Wash and Deicer - 1 gal. bottles - 6 pk.
1314.6565 out of 5 Stars. 131 reviews4.6565 out of 5 starsAvailable for ShippingShippingShell Rotella T6 5W-40 Synthetic Heavy-Duty Diesel Engine Oil, 3-pack/1 gallon bottles $89.98 $29.99/ea
Sponsored$8998current price $89.98$29.99/eaShell Rotella T6 5W-40 Synthetic Heavy-Duty Diesel Engine Oil, 3-pack/1 gallon bottles
10584.8261 out of 5 Stars. 1058 reviews4.8261 out of 5 starsAvailable for ShippingShippingMobil 1 0W-20 Advanced Fuel Economy Motor Oil 6 pack, 1-quart bottles $34.98 Was $43.98 $5.83/qt
Instant Savings
Now$3498current price Now $34.98, Was $43.98$43.98$5.83/qt$9 offEnds Sep 20Mobil 1 0W-20 Advanced Fuel Economy Motor Oil 6 pack, 1-quart bottles
14294.8607 out of 5 Stars. 1429 reviews4.8607 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingMobil 1 5W-30 6 pk, 1 quart bottles $34.98 Was $43.98 $5.83/qt
Instant Savings
Now$3498current price Now $34.98, Was $43.98$43.98$5.83/qt$9 offEnds Sep 20Mobil 1 5W-30 6 pk, 1 quart bottles
16794.8749 out of 5 Stars. 1679 reviews4.8749 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingShell Rotella T6 Full Synthetic 15W40 3-pack/1 gallon bottles $89.98 $29.99/ea
$8998current price $89.98$29.99/eaShell Rotella T6 Full Synthetic 15W40 3-pack/1 gallon bottles
434.4884 out of 5 Stars. 43 reviews4.4884 out of 5 starsAvailable for ShippingShippingMobil 1 High Mileage Full Synthetic Motor Oil 0W-20 6-Pack of 1 Quarts $34.98 Was $43.98
Instant Savings
Now$3498current price Now $34.98, Was $43.98$43.98$9 offEnds Sep 20Mobil 1 High Mileage Full Synthetic Motor Oil 0W-20 6-Pack of 1 Quarts
1184.7797 out of 5 Stars. 118 reviews4.7797 out of 5 starsAvailable for ShippingShippingMobil 1 5W-30 High Mileage Advanced Full Synthetic Motor Oil 6 pack, 1-quart bottles $34.98 Was $43.98 $5.83/qt
Instant Savings
Now$3498current price Now $34.98, Was $43.98$43.98$5.83/qt$9 offEnds Sep 20Mobil 1 5W-30 High Mileage Advanced Full Synthetic Motor Oil 6 pack, 1-quart bottles
9794.859 out of 5 Stars. 979 reviews4.859 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingMobil 1 Extended Performance Full Synthetic Motor Oil 0W-20 6 pack, 1-quart bottles $37.98 Was $46.98
Instant Savings
Now$3798current price Now $37.98, Was $46.98$46.98$9 offEnds Sep 20Mobil 1 Extended Performance Full Synthetic Motor Oil 0W-20 6 pack, 1-quart bottles
944.8936 out of 5 Stars. 94 reviews4.8936 out of 5 starsAvailable for ShippingShipping
About this item
Product details
Driving to a cleaner environment. Peak BlueDEF is a quality product made from High Purity Synthetic Automotive Grade Urea and Deionized Water. BlueDEF is stable, colorless, non-flammable and non-toxic. It's classified as minimum risk for transportation. BlueDEF conforms to the ISO-22241-1 specification for DEF, is API registered and meets or exceeds OEM specifications.
info:
If the item details above aren't accurate or complete, we want to know about it.Â
Member ratings & reviews
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |
Showing 1-3 of 500 reviews
Aug 3, 2026
Reviewer name: KC
5 out of 5 stars
Verified Purchase
Walmart has it in store!
All of our tractors require def fluid so when I realized Walmart sold the brand I was go to Home Depot to get I pick it up when I do my household shopping. One less stop and they always have it on the shelves.
Review from walmart.com
Helpful?1JBVD4G0ZA077480403211
Nov 6, 2024
Reviewer name: TwoPointEight Duramax LWN
5 out of 5 stars
Verified Purchase
Wow! GRAPE!
Great price and fresh dates.
Helpful?1JBVD4G0ZA077480403211
Feb 16, 2026
Reviewer name: Henry
5 out of 5 stars
Verified Purchase
the blue Def works great Walmart carries it and it is about the cheapest place if I have to buy it in any other store it is double the price and if I cannot find the blue DEF I am forced to use no name brands and I have nothing but problems check engine light comes on I will get a 75 mi to 15 mile an hour see dealer immediately as soon as I put the blue d e f back in all my problems go away.
Review from walmart.com
Helpful?1JBVD4G0ZA077480403211
Other popular items in Engine Oil & Fluids
Rotella T4 Triple Protection 15W40 2-pack/2.5 gallon bottles $93.98 $46.99/ea
Sponsored$9398current price $93.98$46.99/eaRotella T4 Triple Protection 15W40 2-pack/2.5 gallon bottles
1424.7254 out of 5 Stars. 142 reviews4.7254 out of 5 starsAvailable for ShippingShippingQuaker State High Mileage SAE 10W-30 Motor Oil 6-pack/1 quart bottles $31.48 $5.25/qt
$3148current price $31.48$5.25/qtQuaker State High Mileage SAE 10W-30 Motor Oil 6-pack/1 quart bottles
94.7778 out of 5 Stars. 9 reviews4.7778 out of 5 starsAvailable for ShippingShippingMobil 1 10W-30 Motor Oil 6-pack, 1 quart bottles $34.98 Was $43.98 $5.83/qt
Instant Savings
Now$3498current price Now $34.98, Was $43.98$43.98$5.83/qt$9 offEnds Sep 20Mobil 1 10W-30 Motor Oil 6-pack, 1 quart bottles
5394.846 out of 5 Stars. 539 reviews4.846 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingMobil 1 5W-20 Motor Oil 6 pack, 1-quart bottles $34.98 Was $43.98 $5.83/qt
Instant Savings
SponsoredNow$3498current price Now $34.98, Was $43.98$43.98$5.83/qt$9 offEnds Sep 20Mobil 1 5W-20 Motor Oil 6 pack, 1-quart bottles
10304.8544 out of 5 Stars. 1030 reviews4.8544 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingMobil 1 FS 0W-40 Synthetic Motor Oil 1-quart bottles, 6-pk $34.98 Was $43.98
Instant Savings
Now$3498current price Now $34.98, Was $43.98$43.98$9 offEnds Sep 20Mobil 1 FS 0W-40 Synthetic Motor Oil 1-quart bottles, 6-pk
2624.9122 out of 5 Stars. 262 reviews4.9122 out of 5 starsAvailable for ShippingShippingSureCan 5 Gallon Safety Gas Can With Type II Rotating Spout
Members-only priceSureCan 5 Gallon Safety Gas Can With Type II Rotating Spout
2104.5905 out of 5 Stars. 210 reviews4.5905 out of 5 starsAvailable for ShippingShippingBananas, 3 lbs. $1.47 $0.49/lb
$147current price $1.47$0.49/lbBananas, 3 lbs.
522634.6059 out of 5 Stars. 52263 reviews4.6059 out of 5 starsSNAP EBT eligible, pickup or delivery onlyAvailable for Pickup or DeliveryPickupDeliveryMember's Mark Ultra Dinner Paper Plates, 10", 204 ct. $18.98 $0.09/ea
$1898current price $18.98$0.09/eaMember's Mark Ultra Dinner Paper Plates, 10", 204 ct.
421084.8567 out of 5 Stars. 42108 reviews4.8567 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingMember's Mark Power Flex 13-Gallon Tall Kitchen Trash Bags, Fresh Scent, 200 ct. $19.98 $0.10/ea
$1998current price $19.98$0.10/eaMember's Mark Power Flex 13-Gallon Tall Kitchen Trash Bags, Fresh Scent, 200 ct.
171314.856 out of 5 Stars. 17131 reviews4.856 out of 5 starsAvailable for Pickup, Delivery or ShippingPickupDeliveryShippingMember's Mark Seasoned Rotisserie Chicken $4.98
$498current price $4.98Member's Mark Seasoned Rotisserie Chicken
731424.665 out of 5 Stars. 73142 reviews4.665 out of 5 starsAvailable for Pickup or DeliveryPickupDeliveryWhole Seedless Watermelon $4.97 $4.97/ea
$497current price $4.97$4.97/eaWhole Seedless Watermelon
237153.8057 out of 5 Stars. 23715 reviews3.8057 out of 5 starsSNAP EBT eligible, pickup or delivery onlyAvailable for Pickup or DeliveryPickupDeliveryPennzoil Full Synthetic 5W-30 Motor Oil 6 Pack/ 1 Quart Bottles $38.98 $6.50/qt
$3898current price $38.98$6.50/qtPennzoil Full Synthetic 5W-30 Motor Oil 6 Pack/ 1 Quart Bottles
3394.8761 out of 5 Stars. 339 reviews4.8761 out of 5 starsAvailable for ShippingShippingPennzoil Full Synthetic 0W-20 Motor Oil 6 Pack/1 Quart Bottles $38.98 $6.50/qt
$3898current price $38.98$6.50/qtPennzoil Full Synthetic 0W-20 Motor Oil 6 Pack/1 Quart Bottles
3284.8994 out of 5 Stars. 328 reviews4.8994 out of 5 starsAvailable for ShippingShippingPennzoil High Mileage SAE 10W-30 Motor Oil 6-pack/1 quart bottles $32.48 $5.41/qt
$3248current price $32.48$5.41/qtPennzoil High Mileage SAE 10W-30 Motor Oil 6-pack/1 quart bottles
354.6 out of 5 Stars. 35 reviews4.6 out of 5 starsAvailable for ShippingShippingPennzoil Full Synthetic 5W-20 Motor Oil 6 Pack/ 1 Quart Bottles $38.98 $6.50/qt
$3898current price $38.98$6.50/qtPennzoil Full Synthetic 5W-20 Motor Oil 6 Pack/ 1 Quart Bottles
3004.9167 out of 5 Stars. 300 reviews4.9167 out of 5 starsAvailable for ShippingShipping