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New equipment engines

Discussion in 'General Industry Questions' started by cat320, Feb 12, 2012.

  1. cat320

    cat320 Charter Member

    Nov 7, 2003
    All the new truck diesel engines require that new def fluid now is that true for the new equipment engines also?
    And after seeing some of the info on the def fluid it has a time life so if that is the case how will that effect machines that may site around for months before being used or if times are slow and some machines are just put to the side untill they get busy again? will that require draining all that expensive fluid out and refilling it?
  2. VoodooMojo

    VoodooMojo Senior Member

    Jan 18, 2012
    Sr Technical Service Representative
    Baltimore, East Coast USA
    We have been dreading the day when this becomes the norm.
    Some of this equipment does lay dormant for long periods of time.
    No supplier has given us a definitive answer to your question.

    They do say DEF shelf life is over a year if the temperature remains above 10 degrees and below 95 degrees F.
    Two years if it remains below 75 degrees F.

    Not much of a temperature range.

    Here is some info on the system.
  3. Beachbum0286

    Beachbum0286 Well-Known Member

    Jun 6, 2007
    We have a couple interim tier 4 cat dozers and they do not require DEF. They just regen the exhaust filter. On one of the D8's had the regen sensor and igniter go bad, cat was right out to fix it.
  4. John C.

    John C. Senior Member

    Jun 12, 2007
    Machinery & Equipment Appraiser
    Not all off road diesels built today require DEF but I believe all will after January 1, 2014. I'm thinking that there have been plenty of sales of Tier 1 and up engines to allow the engine issues to sort themselves out. From what little I have seen lately, most of the manufacturers have had experience with the trucking side and the off road should not be near the hassle. Most I've heard about for trucks has to do with utility rigs doing lots of idling. I've heard a couple of horror stories about that and I would think something like that could happen with certain types of machines in some applications.

    The issue I'm wondering about is what will be allowed for the non tier engines after Tier 4 Final begins. Are we going to be allowed to continue to run them until it is not possible to economically repair them anymore?

    I'd be interested in any of the issues good or bad.