Best oil for cummins isx

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Vivaspin, Nov 15, 2020.

  1. Vivaspin

    Vivaspin Bobtail Member

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    Oct 2, 2020
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    I have been doing my own oil changes and have been using shell rotella t5 15w40

    with every oil change i add about 2 gallons of lucas oil stabilizer.

    2010 prostar, 900k miles, deleted.

    what do u guys think is the best oil at this amount of miles and what should be the interval?
     
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  3. slow pok

    slow pok Light Load Member

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    Wasting your money with lucus do the math for a mil miles
     
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  4. Vivaspin

    Vivaspin Bobtail Member

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    Oct 2, 2020
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    $20 extra every oil change, every 17k miles. Hardly a waste of money lol
     
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  5. Lazer

    Lazer Medium Load Member

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    Jan 22, 2017
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    Mobil Delvac 1300 15-40, aim for 15,000 miles
     
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  6. I glide 47

    I glide 47 Road Train Member

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    Do you have two patches put in all your new tires, if not why do you stabilize new oils? Skip the Lucas.!
     
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  7. truckdriver31

    truckdriver31 Road Train Member

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    so you got a engine that burns oil and will need a inframe soon. just keep doing what your doing
     
  8. truckdriver31

    truckdriver31 Road Train Member

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    he has too or the engine will burn more oil. his engine is worn out
     
  9. lester

    lester Road Train Member

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    I switched to Delo, was running Rotella. I burn less oil with the delo
     
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  10. Vivaspin

    Vivaspin Bobtail Member

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    Ok i will put away the lucas. Trucj has had inframe at 650k miles.
     
  11. bad-luck

    bad-luck Road Train Member

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    Baltimore, Maryland
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    Just my opinion, but I never use Lucas. Reason being, is if you have ever see the internal engine parts after the engine has been torn down. All the parts are sticky from Lucas and you can feel the dirt that is stuck to it.
    If you see the internal parts when just oil was used, they are clean.
     
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