Castrol 20w-50 dino

Discussion in 'General Harley Davidson Topic' started by jonnierock, Jul 13, 2011.

  1. jonnierock

    jonnierock Member

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    I'd like to hear from anyone using regular 20w-50 castrol oil in their bike. how long, how many miles, etc. I'm going to start using it and want to know how others who use it like it.
    Thanks in advance Jonnierock
     
  2. Breeze3at

    Breeze3at Well-Known Member

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    I have used regular 20/50 Castrol GTX in my "92 Dyna since new. The front exhaust lifter beat it's bearings out at 40K miles (.530 lift cam). Not an uncommon problem, and I don't think the oil was to blame. Otherwise, no problems at +65K miles.
    I use only Mobil1 VTwin 20/50 in my 2007 Electraglide.
    I can't explain my logic beyond knowing that the '07 inj. is a lot hotter/leaner running engine.
     
  3. dbmg

    dbmg Experienced Member

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  4. Fatboy John

    Fatboy John Member

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    Mobil 1 here...that trying to save a few $$$ has no logic.
     
  5. Redfish-Joe

    Redfish-Joe Senior Member

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    Ran it in my 1980 Yammy 850 for 48 k with no problems or usage. But it didn't run as hot as the Harleys today do. Mobil 1 or another good full synthetic is the way to go.