I've heard that all 2013 diesels require the blue tec fluid. How much cost does that add to your driving. Also how many gallons of diesel does one gal of the stuff treat? Thanks in advance
2.5 gal DEF jug at Walmart is $7.88 in their house brand. There is no good, better, best like there is with other products. It's all the same. It simply meets a standard. I use about 4 or 5 jugs a year driving around 18K miles a year.
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