Luckily, I don&#x27;t own a VW, I&#x27;m just pointing out how this is a scam.  If I were a VW customer, I&#x27;d be really pissed.  I&#x27;m really glad I passed on VWs and bought a Mazda instead.<p>What&#x27;s really stupid is that it sounds like they should be able to get the advertised power and economy with the required low emissions simply by using more DEF.  I&#x27;m assuming the DEF liquid isn&#x27;t too expensive here, but if they just made it so you needed to refill it every 1000 miles, that should solve the problem.  Heck, why can&#x27;t they just make it available at gas stations too?<p>Having this idiotic notion that only dealers should be able to refill the stuff, and that it needs to be done at 10k intervals, is what&#x27;s making it impossible.<p>Why not require that cars must be able to carry enough fuel to drive 10,000 miles while they&#x27;re at it?  It makes as much sense.