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  • Jethro1964 Posts: 1
    Stock Poster Jethro1964
    23 Dec 2018 03:42 PM
    I live in a tropical area and around Xmas it’s pretty hot, I have a 2018 Street Glide should I go to mineral over synthetic oil ? I know this has been asked a thousand times but need to know in myself that this is the correct thing to do. I replaced in my 2007 Heritage and it’s great but not sure on the street glide.

    Jethro 
  • paulybronco Posts: 10704
    Forum Legend paulybronco
    23 Dec 2018 04:07 PM
    Quoting Jethro1964 on 23 Dec 2018 03:42 PM
    I live in a tropical area and around Xmas it’s pretty hot, I have a 2018 Street Glide should I go to mineral over synthetic oil ? I know this has been asked a thousand times but need to know in myself that this is the correct thing to do. I replaced in my 2007 Heritage and it’s great but not sure on the street glide.

    Jethro 
    Your right...now 1001 times
  • WideglidingNZ Posts: 116
    Stock Poster WideglidingNZ
    24 Dec 2018 05:02 AM
    If it's still under warranty stick with the syn oil, not sure what advantage mineral oil has in warm temps if any?
  • Ratbob Posts: 592
    Adelaide Hills
    Performance Poster Ratbob
    24 Dec 2018 05:32 AM
    While all Synth oils aren’t the same, they are engineered to have a much higher temp tolerance before they break down.
  • Krash Kinkade Posts: 2338
    Motor Head Krash Kinkade
    24 Dec 2018 07:46 AM
    Any oil that meet's HD's requirement. but you will have to change it more often in summer. as the high humidity will put condensation in the oil, gear box the same
  • Hound_Dog Posts: 1835
    Motor Head Hound_Dog
    25 Dec 2018 11:40 AM
    Why anyone in their right mind would consider a mineral oil in a late model bike thats already run in is beyond me. Just saying ;).
  • Big Steve Posts: 625
    Yarra Ranges
    Performance Poster Big Steve
    26 Dec 2018 05:45 AM
    Stay Syn, if it helps you sleep better at night change it more frequently.
  • tussuck Posts: 1538
    Melbourne
    Motor Head tussuck
    26 Dec 2018 10:02 AM
    Use google ffs.  

    And just do what Harley recommend as you will get a 1,000,000 opinions here, some of which could invalidate your warranty.   Once your free from warrenty then no one cares.
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