The service advisor at my local dealership said the Ford DEF has a higher amount of ammonia to aid in burning off the carbon.
Did not sound correct by the reading (on the net) I have done.
Everything I see said DEF is 32.5percent. My book says 33percent.
So, true or not.
I have been using Blue DEF. Dealer fills with Ford product at oil change.

 

I never even thought about it. I buy the ford stuff when I can just because I like a big ol' pile of Ford receipts if a warranty issue should arise, besides, their filler nozzel does a good job of eliminating spills. I have run Blue def many times and did not have an increase in regen cycles, so as far as I am concerned, it's all the same. Especially if it has the ASE approved logo on it.

 

The service advisor is wrong.


All certified DEF fluid is identical. The only difference is the bottles. I prefer the Ford ones for easy filling, but other than that there's no other change.

 

I found the perfect solution for adding DEF ... the very inexpensive plastic siphons used to fill kerosene heaters! My first experience with Blue DEF was a disaster ... the Ford fill-tube has a restriction in it that caused DEF to backup and spill everywhere. Then I bought a Ford jug with its seal on the tube and that was easier but holding up that big jug for the slooow fill was a huge pain. Now I just buy a Blue DEF, set it up on my tool box, plug in the siphon, pump it a couple of times to get it going and watch it go! Easy as pie! I had to add about 24" of tubing to the siphon and stick it in until I feel the restriction. DEF fills couldn't be any easier now.

 

I just get the fluid at the truck stop when I fill up. Has a nozzel just like a gas pump. Not one issue in 80k on my company truck.

 

I buy the Peak def at Walmart.

I reuse the ford fill spout.

Using the ford spout ensures no spilling and no overfill.

As long as the def meets the standard then the make or where you but it does not matter.