Duramax Longevity

Discussion in 'Trucks and Trailers' started by Mini man, Nov 25, 2007.

  1. Mini man

    Mini man LawnSite Member
    Posts: 241

    My 2003 Duramax / Allison has 200,00 km on it now...nobody will offer me a decent trade value so I figure I will be driving it for another 5 years!
    Anyone know the expected life expectancy of this combo?
    Thanks for any answers.....It has been a great truck so far.
     
  2. 02DURAMAX

    02DURAMAX LawnSite Gold Member
    Posts: 3,805

    You still have another 125,000Miles to go!!!....
     
  3. fool32696

    fool32696 LawnSite Senior Member
    Posts: 991

    These motors were marketed to be good for at least 200,000 miles. A well taken care of engine should last to 300,000. It really comes down to if you're willing to pay for injectors after they go out of warranty at 200k.
     
  4. SOUTHERNGREENSCAPES

    SOUTHERNGREENSCAPES LawnSite Senior Member
    Posts: 763

    You Only Have 125k Miles On It And No One Will Give You A Fair Price For A Diesel. That Is Tuff. Of Course, You Said Trade In Also. Dealers Love To Sack It To You. Try Selling It Out Right. I Wouldn't Be Scared Of A 125k Miles.
     
  5. GravelyNut

    GravelyNut LawnSite Bronze Member
    Posts: 1,594

    The engine should be good for a minimum of 250K. Take the injectors to and Injector, Governor and Pump shop. It will be cheaper than the dealers.

    Chevy even rates the 8.1L gas engine in the 3500 for that long before any internal failures. Won't comment on the tranny as mine has already spent a month at the dealer's for warranty repair of the flexplate/pump.
     
  6. Budget

    Budget LawnSite Senior Member
    from Pa.
    Posts: 368

    Good friend of mine has two, one with 190000 that smoked a trans at 15000, and second Trans. is still going strong. Now his new one has been back to the dealer few time just for Trans. problem but i think they got it worked out. He held on to the older one cause they wouldn't give him a decent price for trade, Its a 2001 and it clean too.
     
  7. dave k

    dave k LawnSite Bronze Member
    Posts: 1,178

    I have 67k on my Bowtie, I have a long way to go, no problems whatsoever.
     
  8. JoshC

    JoshC LawnSite Member
    Posts: 92

    I belong to a GM Diesel forum and there are a few guys on there with 500,000 miles on their trucks. Given that is an extreme case, it shows that it is possible. 250,000 to 300,000 miles isn't unreasonable though.
     
  9. South Florida Lawns

    South Florida Lawns LawnSite Platinum Member
    from usa
    Posts: 4,785

    You will get 300,000 easy out of the engine. As for the rest of the truck I don't know? My 2003 Silverado is holding up fine so far.
     
  10. 02DURAMAX

    02DURAMAX LawnSite Gold Member
    Posts: 3,805

    Is that an Allison?...Do you have a Duramax or the 8.1?...
     

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