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Check Engine - DEF problems

170K views 267 replies 86 participants last post by  John Jeep  
My DEF/SCR system experience is good so far. I had the GDE tune since 1200miles and have not refilled the DEF tank yet - still shows about 25% full at 12600 miles.
And after the 80,000 mile exhaust system warranty, I'll go with DPF/SCR delete. There is absolutely no point spending money on ill-designed system.