more about engine iol

[5ehsx]

Hi everyone, I thought I at last solved my problems with a smoky bike using Lucas W50 full synthetic, it seemed not smoking so badly except in very poor condition like long que and higher air temp.
Good things often won't last, so that Lucas oil seems not to be imported in the whole Europe since some months ago.
It's quite difficult to find SAEw50 full synthetic, so I ask if a SAE50 mineral can work with our hot engine bikes...
Thanks anybody for any advice.
/Luca

[cubralbre]

From what I understand, Mobil 1 Racing 4T 15W-50 is recommended for Harleys in Europe. Not sure if you have access to that.
No expert.........but all recommendations show to use a synthetic, not mineral.
Per the Service in on this website" The company recommends a fully synthetic 20-50w oil, designed for motorcycles. It is mperative to purchase ONLY motorcycle oil for the needed clutch additives."
Nobody had answered yet so just thought I would give it a quick response. The word "recommend" does not mean it would not work.

[5ehsx]

Gonna check.
Thanks!

[wytfut]

My sincere apologies for such a VERY SLO reply...
I have no excuse, and can't give you an answer why. Maybe my age.....

Anyway.... The Group discovered in the early years that dinosaur oil wasn't going to be able to take the heat. Our bikes then were running as high as 288+ degrees. Oil is designed for 235. A couple of rounds on dinosaur oil, .... well it'd be bad.

So in general is was decided ful synthetic. Mostly 20/50 motorcycle oil (make sure it is motorcycle oil, as automotive doesn't have any zinc). As for brand, I use Amsoil. A lot owners are using Mobil 1, and or other motorcycle oil products.

Do not use any lucas/stp type oil additives. Your clutch will thank you for it. Shifting will get difficult.

Any other questions please ask, and I'll try to monitor more closely.