Which DEF?

Reply Subscribe

Thread Tools

Search this Thread

Feb 23, 2020 | 12:26 PM

#16

ATC_F350

Laughing Gas

Joined: Dec 2018

Posts: 837

Likes: 152

From: NE OK

I use Walmart or Blue Sky def at Atwoods. It is usually $6.99 and on sale every now and then for $5.99.

Feb 24, 2020 | 01:08 PM

#17

Andrewalker7

Mountain Pass

Joined: Jul 2019

Posts: 100

Likes: 1

From: Texas

Truck stop pumps here in Texas are in the $2-3/gal range for DEF. Haven't blown up yet.

Apr 27, 2020 | 07:43 AM

#18

Jstamm2001

Tuned

Joined: Nov 2019

Posts: 266

Likes: 26

From: Wisconsin

My dealer said to only use motorcraft which I have never seen at Walmart. It’s more expensive than the blue stuff I see on shelves. I have a 2017 f350 6.7 - does it matter which brand I use?

Apr 27, 2020 | 08:09 AM

#19

C12H24

Posting Guru

Joined: Feb 2018

Posts: 1,555

Likes: 516

It does not matter. DEF has to meet a laboratory specification and has a specific gravity. It has only a few components...water and cow ****, so unless the Motorcraft stuff gets their **** from superior cows, it would be chemically the same stuff.

Apr 27, 2020 | 08:19 AM

#20

HRTKD

Hotshot

Joined: Oct 2015

Posts: 19,686

Likes: 12,808

From: Wyoming

I use the Wal-mart brand of DEF. When the gauge goes below half I add a full jug. No spills, no issues. The one time I was going to fill DEF at a truck stop, there were out.

At least they had diesel!

Apr 27, 2020 | 01:49 PM

#21

Jstamm2001

Tuned

Joined: Nov 2019

Posts: 266

Likes: 26

From: Wisconsin

Quote:

Originally Posted by C12H24

LOL - maybe motorcraft cows are on steroids? 😂

good stuff - thank you

Apr 27, 2020 | 04:23 PM

#22

slapshot12

More Turbo

Joined: Oct 2017

Posts: 562

Likes: 45

I’ve used the BlueDEF on my 3 diesel trucks with no issues at all. I can get it at Walmart, Home Depot, and Lowe’s.

Apr 27, 2020 | 05:22 PM

#23

SuperchargedPSD

Tuned

Joined: Nov 2019

Posts: 302

Likes: 10

I just order motorcraft in bulk to get free shipping.

FTE Stories

Ford Trucks for Ford Truck Enthusiasts

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

10 Most Surprising 2026 Ford Truck Features!

Joe Kucinski

Top 10 Ford Trucks Coming to Mecum Indy 2026

Brett Foote

5 Best / 5 Worst Ford Truck Wheels of All Time

Joe Kucinski

Apr 27, 2020 | 05:31 PM

#24

ford390gashog

Fleet Owner

Joined: Jan 2004

Posts: 26,007

Likes: 575

From: Brentwood,CA

Bulk DEF is 139 here for 55 gallon drums as of this morning. I was placing a fleet order and confirmed the 139.00 was not a fleet only price. So if anyone needs quantity call your local oil supplier. Brand was Either Vulcan or Sinopec depending on supply.