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How much 2 stroke oil per gallon do I use?

Discussion in 'GM 6.5 Diesel Engines' started by fonecop1, May 30, 2010.

  1. fonecop1

    fonecop1 New Member

    188
    0
    Dec 21, 2008
    If I use 2 stroke oil as a lubricant how much per gallon do I add?
    Thx,
    Bob
     
  2. TubeAndKnuckle

    TubeAndKnuckle New Member

    3
    0
    Apr 21, 2010
    Philadelphia PA
    What I do is add half of a quart per 20 gallons and that seems to help the engine run much better!
     
  3. tanman_2006

    tanman_2006 Just a farm kid...

    4,542
    63
    Feb 15, 2010
    Seiling, Oklahoma
    I just pour a quart in my 26 gallon tank.
     
  4. buddy

    buddy New Member

    It does enough to use just 1/2 quart with 26 gallons. 3/4 quart for 34 gallon tank.

    HERE IS A LUBRICITY TEST REPORT

    Super Tech Outboard 2-cycle TC-W3 engine oil
    HFRR 474, 162 micron improvement
    200:1 ratio
    16.64 oz/tank
    $1.09/tank

    Using the recommended half as much PS nets less than half the lubricity addition at 50% more cost

    MMO actually made lubricity worse.
     
  5. Matt Bachand

    Matt Bachand Depends on the 6.5

    5,330
    4
    Jun 10, 2008
    Worcester, MA
    I do a quart per 20 gallons.
     
  6. dazed

    dazed ®

    139
    1
    Oct 25, 2009
    I run 1/2 oz per Gallon....Fairly easy to figure out with a graduated measuring device (as I'm also adding PS at rate of 1oz per 3 gallons)

    Also keeps the math simple for 20 gallons I add 10oz (20/2=10)...or just figure the number your looking for is half of the gallons of fuel you put in your tank.
     
  7. JMJNet

    JMJNet Recruit

    1,793
    30
    May 6, 2008
    Richardson, TX
    I do the same thing, simple. Great minds think alike.
     
  8. WarWagon

    WarWagon Well it hits on 7 of 8...

    5,992
    318
    Nov 15, 2009
    AZ
    16:1 weedwacker or a 32:1 chain saw? ):h
     
  9. dazed

    dazed ®

    139
    1
    Oct 25, 2009
    Wouldnt it be 256:1 ratio for 1/2 oz per gallon( 128oz per gallon x.5)?
     
  10. Badaxe

    Badaxe New Member

    123
    0
    Feb 27, 2010
    Denver
    I run Power Service religiously. With the recent stalls and code 36 I was thinking of running some 2 stroke through it. Question is do I use both?
     
  11. buddy

    buddy New Member

    Yes, mine were off by a factor of 2, I forgot the /2 in the first calculation. :confused:

    200:1 ratio would be 1/2 quart to 25 gallons, which is the recommended amount of 2 stroke. Or as you point out 0.64 oz per gallon of fuel.

    power service is not a good lubricity additive. If using both every fillup then .5oz of 2-stroke and the recommended concentration of PS should be OK, if the two mix and lubricity adds up, but safer to just add the recommended amount of oil.

    If using ND SAE30 would use twice as much as 2-stroke oil.
     
  12. THEFERMANATOR

    THEFERMANATOR FRANKENBURBAN Staff Member Lead Moderator

    6,609
    287
    May 9, 2008
    ZEPHYRHILLS FL

    I know POWERSERVICE says there new formula is different from the one that was tested in the lubricity test awhile back as it now says ULSD formulation with slickdiesel in it.
     
  13. Idle_Chatter

    Idle_Chatter (A)ACLU #79

    1,424
    0
    May 4, 2008
    Blackfoot, ID
    I've been using 1/2 ounce per gallon for a couple of years now.

    ND SAE 30 is oil that is not designed to burn, 2 stroke oil is designed to burn, maybe a bit more lubricity, but more ash, carbon and varnish.
     
  14. DieselCash

    DieselCash Trust but, verify Staff Member Moderator

    6,246
    48
    May 29, 2008
    Salado, Texas
    I mix in a used power service 1 quart bottle half power service and the rest walmart 2 stroke oil on every tank.
     
  15. Dieseldad97

    Dieseldad97 I now know why.

    I'm a dump and go guy. Fill up..dump what I feel like into the tank and go. Sometimes if I forget to buy 2-stroke, I go many tanks with no oil. Oh well.
     
  16. NVW

    NVW Well-Known Member

    7,463
    153
    May 5, 2008
    Castor, AB.
    Sounds like me:smile5:
     
  17. Matt Bachand

    Matt Bachand Depends on the 6.5

    5,330
    4
    Jun 10, 2008
    Worcester, MA
    I've been running 1 oz /gallon for years if 2-stroke, and about 2 oz per gallon if its SAE 30 ND. Always with a few ouces of Powerservice.

    More is better than less IMO with moderation. The IP just loves it. Just as it loves the synthetic oil and turbo too. Smooth sailing.
     
  18. dangerousdave

    dangerousdave Brain Damaged Diesel Junkie

    Ya sure, but your truck is a baby (miles).
    This is all very nice discussion, but each truck is different. Optilube makes mine run noisy, with lower mpg. I get better results with Wally World Tech 2-stroke and PS silver bottle added per instructions.
    I know i've said it B4, but
    I mix 'em up in plastic Coke bottles ready to add at the pump, we always fill up around 1/2 tank (23 gal). at the same station, unless we're on a road trip, then only at high volume truck stops [and I don't mean noise].

    I still have a 1/2 gallon of Optilube summer leftover as a backup if I run out of my usual drink / mixture.
     

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