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  1. #1
    Chris Nicastro's Avatar
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    Which oil do you use?

    Recently I bought a used Saito FG 36 for a project I'm working on. I tore down the engine tonight to inspect it and found a lot of soot and corrosion inside. I didn't ask the previous owner which oil he used but now I will. I'm sure he didn't really know because he was running the engine until he sold it.
    The bearings are shot for sure and the other parts, crank and cam etc., need to be cleaned up. I see a lot of residue on all of the exhaust side components too. Looks like varnish and then soot here and there. From the plug I see the engine was running very rich.

    So what oil are you guys using and in what ratio and what kind of results are you seeing with your Saito four stroke gas engine?

    Thanks,

    Chris
    Like a midget in a urinal I knew I had to stay on my toes...

  2. #2
    Moderator w8ye's Avatar
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    RE: Which oil do you use?

    It would be very unusual to see any corrosion inside a gas engine?

    Maybe it was run on glow fuel for a spell?

    I run Pennzoil air cooled two stroke in mine at 20:1

    The residual oil coming out the crankcase looks like diesel truck motor oil as it is as black as can be.

    There is only black soot around the exhaust valve stem and in the muffler.
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
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  3. #3
    MetallicaJunkie's Avatar
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    RE: Which oil do you use?

    30cc on down 28:1 stih ultra hp.... 50cc on up stihl ultra 40:1
    \"Propellers are notorious for inflicting serious bodily harm while vigorously defending their space\" George Aldrich

  4. #4

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    RE: Which oil do you use?

    IS there a difference between stihl Ultra hp and Stihl Ultra (no hp in name)?

  5. #5
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    RE: Which oil do you use?

    STIHL High Performance 2-Cycle Engine Oil
    This STIHL High Performance oil is a quality 2-cycle engine oil developed for all STIHL products and especially suitable for professional chain saws.

    STIHL HP Super 2-Cycle Engine Oil
    HP Super is a partial synthetic blend 2-cycle engine oil designed for high performance power tools and chain saws with excellent โ€œlow smokeโ€ characteristics plus superior lubricity in comparison to other low smoke oils. STIHL HP Super is certified ISO-L-EGD and JASO-FD and exceeds API TC certification.

    STIHL HP Ultra 2-Cycle Engine Oil
    HP Ultra is a fully synthetic 2-cycle engine oil specially suited for high performance chain saws and power tools. This oil has outstanding engine cleaning characteristics, plus โ€œultraโ€ superior lubricating qualities in comparison to other 2-cycle engine oils. It is ideal for use in STIHL 4-MIXยฎ engines. This oil is biodegradable, degrading by 80% in 21 days.
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  6. #6
    Jezmo's Avatar
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    RE: Which oil do you use?

    My Saito four stroke gassers get 20:1 Redline Two Stroke Racing synthetic. The oil from the breather tube is slightly dark but not nearly as black as what Jim (w8ye) describes in his post above. If I can't get Redline then Stihl HP Ultra or Castrol Power RS TTS. All three are absolutely excellent synthetic oils.

    P.S. The Stihl HP Ultra is made for them by Castrol.
    Spektrum DX8i, DA DLE SuperTigre OS FOX Saito Enya Jett TT: John 3:16

  7. #7
    Rocketman_'s Avatar
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    RE: Which oil do you use?

    ORIGINAL: AJsToyz

    STIHL HP Ultra 2-Cycle Engine Oil ...
    This oil is biodegradable, degrading by 80% in 21 days.
    It says "biodegradable" right on the bottle. What the hell do they mean by that? Does it rot? What does it degrade to, water? How long can you keep it before you are required to buy fresh oil?
    I still have some Mobil 1 Racing 2T synthetic (no longer available) that I saved for use in an MVVS 26cc but I read somewhere in these forums that it has a shelf life. Does it become something other than synthetic oil after awhile?
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  8. #8
    AJsToyz's Avatar
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    RE: Which oil do you use?

    The other 20% will still be there!
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  9. #9
    a1pcfixer's Avatar
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    RE: Which oil do you use?


    ORIGINAL: Rocketman_

    ORIGINAL: AJsToyz

    STIHL HP Ultra 2-Cycle Engine Oil ...
    This oil is biodegradable, degrading by 80% in 21 days.
    It says ''biodegradable'' right on the bottle. What the hell do they mean by that? Does it rot? What does it degrade to, water?...................
    ..........................
    For those 'search challenged' here ya go......
    http://search.rcuniverse.com/search....=biodegradable
    Jim L.
    Learn from the mistakes of others.You won,t live long enough to make all of them yourself.

  10. #10
    AJsToyz's Avatar
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    RE: Which oil do you use?


    ORIGINAL: AJsToyz

    The other 20% will still be there!
    Hoping no one really took that seriously?! (meant as humor, sarcasm ,slap stick, Nyuk Nyuk Nyuk!)
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  11. #11
    Rocketman_'s Avatar
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    RE: Which oil do you use?


    ORIGINAL: AJsToyz
    Hoping no one really took that seriously?! (meant as humor, sarcasm ,slap stick, Nyuk Nyuk Nyuk!)
    I thought the "20%" was funny but some folks may have needed clarification. I was sure that my weak attempt at humour in post #7 would not evoke a great deal of hilarity but I thought it might keep the thread atmosphere light. Sometimes the air in oil threads gets kind of caustic.

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  12. #12
    CustomPC's Avatar
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    RE: Which oil do you use?


    ORIGINAL: Rocketman_

    It says ''biodegradable'' right on the bottle. What the hell do they mean by that? Does it rot? What does it degrade to, water? How long can you keep it before you are required to buy fresh oil?
    The Stihl Ultra HP is biodegradable because it's rebadged Castrol Bio Lube Outboard Marine oil.

    It's a good oil.

    I read somewhere it will break down in 21 days after it has been through the engine. I don't know how long it can be stored unused or mixed with gasoline.


  13. #13
    MetallicaJunkie's Avatar
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    RE: Which oil do you use?


    ORIGINAL: jedijody

    It does not degrade until you pour it out on the ground or otherwise expose it to the elements ie; sun, water, earth. It keeps just fine all winter long in my weed whacker/chainsaw fuel jug.
    \"Propellers are notorious for inflicting serious bodily harm while vigorously defending their space\" George Aldrich

  14. #14
    AJsToyz's Avatar
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    RE: Which oil do you use?

    ORIGINAL: Rocketman_


    ORIGINAL: AJsToyz
    Hoping no one really took that seriously?! (meant as humor, sarcasm ,slap stick, Nyuk Nyuk Nyuk!)
    I thought the ''20%'' was funny but some folks may have needed clarification. I was sure that my weak attempt at humour in post #7 would not evoke a great deal of hilarity but I thought it might keep the thread atmosphere light. Sometimes the air in oil threads gets kind of caustic.

    I read that with my wife last night and we were both laughing, thats where the 20% came from! Keep it going! Good stuff there !!

    Andy
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  15. #15

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    RE: Which oil do you use?

    I've used Amsoil @ 50:1 for the past several years with perfect results.

    Rick
    "Futaba gets it right the first time."

  16. #16

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    RE: Which oil do you use?

    how sure are you its rebadged outboard oil? outboard oil is for water cooled engines ????
    ORIGINAL: CustomPC


    ORIGINAL: Rocketman_

    It says ''biodegradable'' right on the bottle. What the hell do they mean by that? Does it rot? What does it degrade to, water? How long can you keep it before you are required to buy fresh oil?
    The Stihl Ultra HP is biodegradable because it's rebadged Castrol Bio Lube Outboard Marine oil.

    It's a good oil.

    I read somewhere it will break down in 21 days after it has been through the engine. I don't know how long it can be stored unused or mixed with gasoline.

    www.hmfc.co.za
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  17. #17
    CustomPC's Avatar
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    RE: Which oil do you use?


    ORIGINAL: clivemc

    how sure are you its rebadged outboard oil? outboard oil is for water cooled engines ????
    Somewhere in the Stihl HP Ultra thread i posted 4 MSDS and data sheets for both oils and they are exactly the same.

  18. #18

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    RE: Which oil do you use?

    Amziol "saber" oil only

  19. #19

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    RE: Which oil do you use?


    ORIGINAL: clivemc

    how sure are you its rebadged outboard oil? outboard oil is for water cooled engines ????
    ORIGINAL: CustomPC


    ORIGINAL: Rocketman_

    It says ''biodegradable'' right on the bottle. What the hell do they mean by that? Does it rot? What does it degrade to, water? How long can you keep it before you are required to buy fresh oil?
    The Stihl Ultra HP is biodegradable because it's rebadged Castrol Bio Lube Outboard Marine oil.

    It's a good oil.

    I read somewhere it will break down in 21 days after it has been through the engine. I don't know how long it can be stored unused or mixed with gasoline.





    Most modern 2 stroke oils are dual purpose; for both water and air cooled engines


  20. #20

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    RE: Which oil do you use?

    I personally use Amsoil, Interceptor, Dominator and Saber. I've been using Amsoil 2 stroke oils for a couple decades now, in numerous applications.
    To err is human, to really mess things up requires government involvement

  21. #21

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    RE: Which oil do you use?

    Farm & Fleet T full synthetic.  Their oil is pretty good, been using it for years in my yard tools.  Other than the Ethanol eating up a fuel line because I was too lazy to drain the tank, I haven't had any problems.
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