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  1. #51
    Join Date
    May 2017
    Location
    Amarillo, TX
    Posts
    18

    Default

    T4 is conventional oil, T5 is semi synthetic, and T6 is full synthetic. I switched at 400 hours to the Rotella T5 15/40 and change it every 100 hours and the black stone labs oil test shows all is good!!!


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  2. #52
    Join Date
    Sep 2005
    Location
    Claytor Lake, VA
    Posts
    470

    Default

    Been using T6 for years in my '05. Local Wal-Mart always it on the shelf. Main thing is change your oil!
    2005 Mobius LSV
    325 EFI

  3. #53
    Join Date
    May 2013
    Location
    Spokane, WA
    Posts
    566

    Default

    Quote Originally Posted by VA LSV View Post
    Been using T6 for years in my '05. Local Wal-Mart always it on the shelf. Main thing is change your oil!
    Yep I change at or before 50 hours religiously.


    Sent from my iPhone using Tapatalk
    2013 LSV Red/White

    1100lb upgrades in each rear locker!
    Stock 500 Bow ballast
    650IBS
    Manual Flow equipped

    Boards
    Hyperlite Hi-Fi "The Illest"
    CWB AMG Carbon
    Phase 5 Razz
    Byerly Volt
    4.6 Ronix Koal Fish
    Phase Five Scamp (kiddos)

  4. #54
    Join Date
    Sep 2018
    Location
    Orlando
    Posts
    2

    Default

    Im using SAE 15W 40 in my 2005 Outback. What kind of oil does everyone use?

  5. #55
    Join Date
    Apr 2013
    Location
    Knoxville TN
    Posts
    1,150

    Default

    2007 Indmar and Rotella T4 SAE 15W 40
    I keep it simple every 50 hrs.
    2007 Supra SSV 22'

  6. #56
    Join Date
    Oct 2010
    Location
    Red Deer Alberta
    Posts
    215

    Default

    ^^^ Same with me. Rotella T4, every 50 hours and end of season.
    2007 LSV
    2003 Outback - Sold

  7. #57
    Join Date
    May 2019
    Posts
    7

    Default

    FYI for those running T4: Shell has stated that Rotella T4 is not safe for catalytic converters. Itís a shame, I ran T4 in my 1993 Nautique for years and sold it with 958hours and it never missed a beat. Iím hesitant to run it in my Assult 340hp engine based on Shells warning. Thoughts?
    Currently, Iím running Lucas marine 25W40 and just let it warm up a lot before pushing it based on the 25weight. I didnít have very good luck finding 15w40 that met the Indmar requirements.

    ďShell Rotella T is a line of heavy duty engine lubrication products produced by Royal Dutch Shell. The line includes engine oils, gear oils and coolants. The oil carries both the American Petroleum Institute (API) diesel "C" rating as well as the API gasoline engine "S" rating. Ratings differ based on the oil. Rotella oils like T3 15w-40 meets both the API CJ-4 and SM specifications, and may be used in both gasoline and diesel engines. However, it is formulated specifically for vehicles without catalytic converters, containing phosphorus levels beyond the 600-800ppm range.[1] Therefore, Rotella is not recommended for gasoline vehicles with catalytic converters due to the higher risk of damaging these emission controls.[2] Newer formulations of Rotella T6 however are API SM rated as safe for pre-2011 gasoline vehicles.Ē
    Last edited by Glenwyatt; 06-09-2019 at 09:56 AM.

  8. #58
    Join Date
    May 2018
    Posts
    916

    Default

    SN is what the raptors require.

    But great points on having too much ZDDP will harm cats. Itís not really clogging but it makes the catalyst less effective.

    All engines consume oil especially under loads, even worse on boosted engines.

    The 400/450/460ís donít need crazy amounts of ZDDP. The cam ramps are not that aggressive.






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  9. #59
    Join Date
    Oct 2010
    Location
    Red Deer Alberta
    Posts
    215

    Default

    Ok. Am I assuming that it is just the 340 that it affects and not the 325 FI engine? Or is there a catalytic converters on the 325 engines?


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    2007 LSV
    2003 Outback - Sold

  10. #60
    Join Date
    May 2019
    Posts
    7

    Default

    as far as I know there are no Cats on the 325hp engine of the same generation as my 2008 XLV. The 2008 340hp does have cats.

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