SDMExplorerMar 23, 2018Def fluidHave a 2011 Duramax. Have had a sensor problem. Dealer says the def from Walmart is giving some problems. Any thoughts.
SidecarFlipExplorer IIIMar 23, 2018I spray it on my hay fields as a foliar innoculant. Makes good fertilizer. Cat pee in a jug. 32% urea and di-ionized water.Urea is processed 'poop'.Far as old or not old, I'd just check the end date on the jug.
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