Comments by "MARK LOCKWOOD" (@MARKLOCKWOOD2012) on "ISSUES with my NEW PETERBILT… DPF and DEF??" video.

  1. yea i heard ya scary thing is expired urea. over filling def tank. it has to be drained flushed and re filled. rumors of uncle sam cutting manufacturers from making less. harder to find and much higher def prices. uncle sam run off the rails.
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