DEF Refractometer

[M376X6]

I was looking at customer reviews for Walmart's Super Tech DEF and the reviews were very positive for the most part. A very small few were actually scary. Some folks mentioned they have had problems with other brands of DEF and so forth. My fourth and previous Ram Cummins was a 2013 and didn't use DEF. I am not opposed to DEF in the least especially if it helps with the environment. In my dealings with issues as an engineer in my past life I am familiar with hygrometers and refractometers. I looked at my current addiction which from the number of orders weekly is Amazon. They have refractometers dedicated to DEF reading. Of course, I also discover there are meters that measure everything else as well but since I have those, I went with the DEF only. I measured it using a sample from a Platinum DEF container and the line was exactly where it should be. So, in it went. The Platinum was the oldest container I have so I used it as it was next in line. I don't know if using this meter might keep me from having problems down the line, but I figure it can't hurt. The refractometer was around 22 dollars. I keep between four and five 2 1/2-gallon new containers on hand because there was a short time where finding DEF was a little challenging for me.

 

[Jay P]

Age, heat and sunlight are the biggest issues for DEF. Most all DEF is the same no matter the box it's in.
Getting it from a pump at a truck stop is the cheapest and best place to get it.

 

[stevenP]

I have used the wally world DEF for years. So far its been great. Key thing is they sell a lot of it , so nothing stays on the shelf very long.

 

[mtnrider]

While I have seen people with "claimed" issues of bad DEF I have yet to see actual proof of any. I think almost every one was either contaminated (ie: put something else in the DEF tank) or a sensor issue. I've used wal mart DEF for years with zero issue.

Bottom line, it's not something I'd lose a lot of sleep over