This a good product as far as I can tell but who knows if it’s good or not since it takes years of use to know if it’s good or bad for your vehicle. I think it’s too expensive and would prefer the Walmart brand.

Volkswagen Passat diesel, Ford Truck diesels & Mercedes diesels now require this fluid in a separate tank to clean the exhaust. Way cheaper than the dealers & easier than going to a truck stop. Engine mixes it automatically, cleans up exhaust.

It’s urea and water, I doubt it does anything for the environment and it’s overpriced. I only buy it when the cheap Walmart pee pee water isn’t available. If my truck didn’t shut down without it I wouldn’t waste my time with it

Be careful of the date on the box. I was out of town and needed some for the return trip and about half way home i went into limp mode, 4 mph, and now have to clean out the DEF tank. When I got home I looked at the box and it was 2 years old.

This is the 2 nd time my def system on a f250 went out due to this fluid ,if the fluid is stored in a hot area or exposed to the sun it will mess up sensor on your diesel

This product does what it says it does for newer diesel trucks that require DEF. Easy to find at Walmart. Wish it was a tad cheaper as you don't get an option whether or not to use DEF.

The only thing i liked about the store was it had 4 out of 5 things that i needed that day vs. making 5 different stops. I would have made the 5 stops had I not had my 5 year old grandson with me!

Good price

On a cross country trip with my deisel pickup, I needed some DEF . Stopped at Walmart and was able to find just what I needed at a good price.

Been using for 9 years, no issues except having to use in first place. I have not used another product to offer comparisons