Motorcycle Forums » General

Royal Purple Synthetic Motorcycle oil!

  • January 13, 2010 1:23 AM PST
    Ok everybody! I've been using H-D 20-50 synthetic motor oil in my 2007 FLHR since my 500 mile Oil change. I've been thinking of changing to Mobil 1 20-50 synthetic for air cooled motors. But I've heard a lot of good things about the Royal Purple 20-50 oil for H-D. Just wanted to throw it out there, Anyone use Mobil or Royal Purple? I have 34,000 miles on my bike and haven't had any issues yet. Any feedback will be appreciated! Thanks! Oh yeah do I have to get a Royal Purple oil filter for my bike is I switch to the Purple?
  • January 13, 2010 1:25 AM PST
    From what I can find the Royal Purple is the best. Started using it last year in all 4 bikes.
    • 46 posts
    January 13, 2010 1:48 AM PST
    Never heard of it. Do yo get it at the local auto parts store.
  • January 13, 2010 2:11 AM PST
    Never ran Purple, Run AMSOIL in both bikes and love it...... Runs cool and have NEVER had any type of issues.
  • January 13, 2010 2:51 AM PST
    I've ran nothing but Royal Purple in my bikes. Makes it easy for a change you can run it in all 3 holes.
  • January 13, 2010 2:52 AM PST
    and for the filter no, I just use the $5 fram filter you can get anywhere.
  • g
    January 13, 2010 3:51 AM PST
    all 3 !.
    • 6 posts
    April 20, 2010 1:16 PM PDT
    Take this for what it cost you.

    http://www.blackstone-labs.com/newsletters.php?ID=63 />
    p.s.: I use HD oil because if anything goes wrong I enjoy the thought of suing HD. Synthetic oil is great but in my opinion, if you change oil regularly, for most riding in non-desert temperatures it is a waste of money.
  • April 20, 2010 1:32 PM PDT
    Royal Purple, Amsoil, Mobil 1, and Rotella T Syn (what I use) are all great oils.
  • April 20, 2010 1:40 PM PDT
    extreme, you run the rotella t syn, i ued the rotella t15w40 in my business servicing semi's and that was a freekin great oil, the syn is better? i would drop oil at 10k on a semi and it would be black, but slick as hell, and it was a conventional.
  • April 20, 2010 2:11 PM PDT
    jlhoils1 wrote...
    Here is some good info and comparisons on oils including Royal Purple    www.jlh-oils.com/aboutus.html

  • April 23, 2010 2:56 PM PDT
    extreme, you run the rotella t syn, i ued the rotella t15w40 in my business servicing semi's and that was a freekin great oil, the syn is better? i would drop oil at 10k on a semi and it would be black, but slick as hell, and it was a conventional.


    Yea Bro, I run the T Syn in everything I have. Scooters, tractor, truck, the wife's Z, boy's trucks, etc. One oil covers everything.

    • 2072 posts
    April 23, 2010 3:00 PM PDT
    Been using the Rotella Syn since my first oil change ('05 Suzuki Boulevard C-90). Awesome oil and only 19.00 a gallon at Wallyworld !!! (That and a K&N Filter)
  • April 2, 2011 12:43 PM PDT
    Amsoil is the #1 Synthetic Oil.
  • April 2, 2011 2:09 PM PDT
    embrym wrote...
    Amsoil is the #1 Synthetic Oil.

    I'd be interested in scientific analysis and explanation of why this is so. 

    jb

  • April 15, 2011 4:28 PM PDT
    I run Amsoil in mine, but I have heard good things about Royal Purple from the guys I ride with.
  • April 15, 2011 11:32 PM PDT
    jbasile wrote...
    embrym wrote...
    Amsoil is the #1 Synthetic Oil.

    I'd be interested in scientific analysis and explanation of why this is so. 

    jb



    Here is some more great info     
    https://www.amsoil.com/products/streetbikes/WhitePaper.aspx />
  • April 15, 2011 11:32 PM PDT
    jbasile wrote...
    embrym wrote...
    Amsoil is the #1 Synthetic Oil.

    I'd be interested in scientific analysis and explanation of why this is so. 

    jb



    Here is some more great info     
    https://www.amsoil.com/products/streetbikes/WhitePaper.aspx />
  • April 17, 2011 5:25 AM PDT
    They have sales on mobil 1 oil all the time at the place i get my oil from. $8.50 per qt. for synthetic 20w50 and because of this I myself can't justify the 16 dollar per qt. charge on the royal purple oil. The test results for the different types of synthetic oil were very imformative thanks alot Jeff.
  • April 17, 2011 5:30 AM PDT
    Your very welcome, We change our fluids in the bikes once a years with AMSOIL. I do change the oil filter around 4-5K then just add. We ride between 12-17K a year and have never had a problem. Even in Sturgis last year (105º)on the hottest day, Both Road Kings stayed under 250º even in traffic...
    • 844 posts
    May 13, 2011 2:56 AM PDT
    I always run Amsol and have no problems!!! So why change?
  • May 13, 2011 9:47 AM PDT
    GoFur wrote...
    I always run Amsol and have no problems!!! So why change?










    I agree

  • July 20, 2011 9:04 AM PDT
    Wouldn't touch the stuff! (Royal Purple) AMS Oil is all I will ever need BAYBEE!!!