Schaeffers Supreme 5w-50 oil

Discussion in 'Oil' started by rossn2, Mar 9, 2011.

  1. rossn2

    rossn2 Member

    46
    0
    0
    Anyone tried either the Supreme 7000 20w-50 or Supreme 9000 5w-50 oil in their bike?
    I just ordered a case of the 9000 to try in my 2011 FLHTK engine and primary. Will continue to run Amsoil 75-110 (SVT) in the tranny.
     
  2. glider

    glider Veteran Member

    25,464
    108
    43
    I wouldn't run any 5w-50 in a harley or larger air cooled engine. 20/50 is all I would use.
     
  3. BUBBIE

    BUBBIE Well-Known Member Contributor

    4,914
    58
    75
    YEP Glider is Right On Here as ALWAYS.. !!

    May I add my thoughts:
    The 5w IS the weight OF the oil, and NEVER will get Heavier than THAT...IT will REMAIN a 5W all the way Thru raising temps that a 50 weight takes to BECOME a 5w oil. The LIGHTEST oil that is recommended for a HD is 20w50 and 5w WILL result in damage to the motor IMO.... Way TOO THIN.(.)

    signed....BUBBIE
     
  4. Jack Klarich

    Jack Klarich Expert Member Contributor

    17,310
    123
    114
    Bubbie and Glider are right here, while Honda and Toyota want to use 0-20 oils in water cooled they can get away with it, but not in an air cooled motor:s
     
  5. doctordoug

    doctordoug Account Removed

    137
    0
    0
    I wouldn't experiment with an untried oil in my expensive new Harley. I use Spectro Platinum 20-50 in the engine, Spectro HD primary oil and their 6 speed oil in the tranny. Redline is also great for the transmission. I'll let some one else try the "new" oil.
     
  6. rossn2

    rossn2 Member

    46
    0
    0
    Hum, isn't the first number 5w, the cold crankability of the oil? And, doesn't have anything to do with 50w thinning out to 5w?
     
  7. ultra...good

    ultra...good Banned

    302
    0
    2
    Thats what I was always led to believe as well. 5w til it warms up, then its 50w. In my manual it recomends to use 10w40 in weather below 40F. Thats on the 99 ultra.
     
  8. BUBBIE

    BUBBIE Well-Known Member Contributor

    4,914
    58
    75
    ***************************************************

    OKAY, this is what I meant...

    You have a 5w, yes that is a 5 weight oil.... Never any heavier.... the 50 relationship tells you ONLY How Long the 5w Will stay-remain a 5w as compared to the 50 weight oil as it is Heated....

    So IF you take a straight 50w and HEAT it up until it Becomes a 5 weight, that is the amount of Heat protection you have Using the 5w oil....
    This Shows that 50w, Heated to the MAX temp. it takes to make the 50w INTO a 5w oil.

    This Is used JUST to compare the 50 weight (how long the 5w will REMAIN a 5w when Heated) BUT Never will the 5w become a 50w oil JUST will remain the 5w it is. 5w50

    If you HEAT a 50w oil Hot enough to become a 4w oil...... That is the same amount of Heat it will take to make the 5w into a 4w ALSO.= comparison only here..

    Now COLD works the other way
    IF a 5w get cold enough it WILL become a 50w and pour like a 50 weight.... at that temp, but IF you compare it to a 50 weight at the same COLD temperature, the 50w will not pour like the 5w, even when it is the same COLD temp..

    that is MY take on this..

    They put molecules into the oil to KEEP IT at a 5w.....
    NO matter what the last number is, 50, 60, 80, The oil WILL be a 5w


    When it gets warm it is a 5w and when it gets HOT, it is a 5w... UNTIL it gets TOO HOT.... Then it Will start to FALL Under the 5w number.

    PHeeewww

    signed....BUBBIE
     
  9. Fossil

    Fossil Active Member

    335
    28
    1
    What ever happened to the common sense of using only oils specified for V twin motorcycles. Late model Harleys cost a lot of money and I read time and again how some one is trying to buy cheaper oil, spark plugs, oil filters, etc. You guys have that much money that you can experiment with your Harleys?
     
  10. ultra...good

    ultra...good Banned

    302
    0
    2
    ummmmmmm yep..............