Quote:
Originally Posted by stevehecht
Is all DEF the same? I guess that's the question. But would VW and BMW DEF be of the same quality and "type" (if there are different types)?
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All DEF is the same. The BMW manual specifies BMW DEF (so that the dealer can charge more), or the AUS 32 standard - which is what everyone else uses. Note that AdBlue is a trademarked name that people have to pay to use, but it's the same stuff.