Harley Davidson Softail Oil

Question

Gday all.

Oil question…. Yup that question haha. Heard that Lucas oil is the go and to stay away from synthetic oils for a 103 motor due to bore glazing and early failure. Got this info from a mechanic that has done many harley rebuilds over the years (about 30 years) and has seen the damage first hand.

Question is i got myself a 20w50 for the motor and gearbox however went with the Lucas primary oil. With the primary oil do i just use this straight in the primary or mix it with the 20w 50. Know it’s a strange question but it says on the rear of the bottle it’s not a lubricant which seems a bit miss leading haha.

Anyone know what the go is?

Daniel 6 years 6 Answers 784 views 0

Answers ( 6 )

    0

    Primary Oil goes straight in.
    Oil goes in Oil
    And probably change your transmission while your at it.

    0

    Cool cheers mate, had me thrown by the (this is not oil) written on the back of the primary bottle haha. Using the 20w50 for the motor and gearbox

    0

    I run nothing but Lucas synthetic products in my Fatboy, love their products! Good choice!

    0

    Who ever told you syn oil will damage your motor is an idiot.

    0

    Lol, he is actually a mechanic in his late 50s that’s been working on Harley’s his whole life and looks after a whole club. I’m inclined to listen to him after seeing damaged bores from glazing and clutches that burn out before their due. Showed me while i was in the workshop last. \n\nGotta ask the question why so many high k Harley’s that ran on dino oil are still about where as newer Harley’s with fewer ks are doing rings, cylanders, scoring and glazing ect. Most new bikes are running synth ;).

    0

    Mobil 1 20w50… motor trans and primary

Leave an answer to Kevin

Browse
Browse

Where are Honda motorcycles produced? ( Japan )