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def gauge

  1. DEF reading 100% full, when only ~1/4 full?

    RAM 1500 Diesel General Discussion
    I've seen lots of posts on here where DEF gauges are reading too low...consensus seems to be it froze and didn't read a fill, or never dropped level and usually related to very cold weather. I can understand the logic there. My DEF tank is about 1/4 full, and I always keep it between 1/4 and...
  2. DEF Gauge faulty?

    RAM 1500 Diesel Mechanical
    The DEF gauge in my 2015 with 5500 Km / 3400 miles was working fine, gauge was indicating at about 60%. Then today it jumped back up to 100% and stayed there all day. Normal day with some light towing and few stops and starts. Outside temperature was about -5 C / 23 F. Everything else looked...
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