Change the primary oil to Spectro.![]()
It's very hard to find any other type of oil for HD in the European Union other than the original stuff.
I will try to find some dealers who are selling Redline oils. I saw that they have good reviews about their products.
I have searched and looked though many posts regarding the best oils for my 2008 RKC. Can you please tell me what should I buy for the primary and transmission?
I saw that HD recommends that the came oil can be used int he primary and tranny.
I really don't know what to choose![]()
I agree with bubbie, use the best Motorcycle Specific Oils you can find.
READ the label and use Motorcycle Specific MA / JASO 20W-50 Motor Oil. It is designed specifically for Air/Oil cooled engines with or without Wet Clutch and Integrated Gear Box.
This oil spec came out when the Japanese manufactures in the 70's needed a "better" oil (MA / JASO rating) for racing 4 Stroke Air/Oil Cooled Multi-Cylinder 1000cc 120HP machines that spun at 10,000 RPM that also had to lubricate the tranny, primary chain (or gear drive) and wet clutches.
A side note...looks like a bubbie post...informative like a bubbie post...but does not SOUND like a bubbie post and signed by who??!! LOL