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which oil

Discussion in 'Trucks [ Eighteen Wheelers ]' started by earthmover, Nov 27, 2010.

  1. Nov 27, 2010 #1
    earthmover

    earthmover Medium Load Member

    563
    20
    Jan 27, 2009
    castalia , north carolina
    0
    hay guys i changed the oil in mt dump a few weeks ago and when i went to get the oil they didnt have enough of the rottala (i think thats right) 15/40 anyway so i went with the valvalen 15/40. now my truck usely idle with 30/33 psi oil press. now with this oil it goes to 25/26 anybody else seen this problem with the oil breaking down so fast?? my truck is a dump and im doing about the same thing everyday that i do with the other oil in it....i plan to change it again and go back to the rott. oh also i use and new type filter that i never used came from the kw dealership fleetguard i always used the baldwn from the fleet pride..maybe that could be it...whats your thought on this ...it just seem funny how it went down from 30/33 to 25/26 with the oil change nothing odd about the oil that came out truck still runs fine ...
     
    earthmover, Nov 27, 2010
    earthmover, Nov 27, 2010
    #1
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  3. Nov 27, 2010 #2
    Izlomik Supatrucka

    Izlomik Supatrucka Light Load Member

    158
    20
    Oct 24, 2009
    Texas
    0
    Fleetgaurd is a good filter they make filters for caterpillar.....IMO valvoline, Castrol, and that such i leave them to passenger car engine oil when it comes to a diesel engine i say go with Rotella, Delo, or Mobil Delvac....I use Rotella only because it was previously ran in the engine before i bought and i dont like changeing oil brands....Always ran Delo in my diesel pickups with no flaws....Delvac is good stuf as well....

    I worked at a oil company for 10 years and we sold a bunch of 15/40 oil over the years that was our main business and i never never remember anybody comeing and asking for valvoline, castrol,penzoil any of that for their diesel engine....

    you may try adding a gallon of lucas to the engine next oil change it helps my oil pressure stay up a little higher
     
    Izlomik Supatrucka, Nov 27, 2010
    Izlomik Supatrucka, Nov 27, 2010
    #2
  4. Nov 27, 2010 #3
    black_dog106

    black_dog106 Road Train Member

    1,786
    1,666
    Mar 29, 2009
    MA
    0
    Just as IS said, Lucas may bring your oil pressure back up?
    Someone posted oil viscositys and viscositys with Lucas add. It thickens oil by a considerable amount. I searched and cant find the article, so i have no proof.
    I always felt Lucas is a "bandaid", covering up other problems. A friend of mine is very dedicated to the stuff. Everyone has their ideas and answers. Mine doesnt include Lucas.
     
    Last edited: Nov 27, 2010
    black_dog106, Nov 27, 2010
    black_dog106, Nov 27, 2010
    #3
  5. Nov 27, 2010 #4
    earthmover

    earthmover Medium Load Member

    563
    20
    Jan 27, 2009
    castalia , north carolina
    0
    im thinking that its the oil thats broke down and will change back to the rott. thats what i use all the time just didnt have enough in stock at the time so i thought i would give it a shott since i needed the change guess i gave 120.00 away but ive learned ...thanks mike
     
    earthmover, Nov 27, 2010
    earthmover, Nov 27, 2010
    #4
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