I can't find mineral oil for my clutch anywhere. Where do I get it from?

you can use oep 80-90
manufacturers sometimes recommend straight mineral oil 90 or lower
talk to a service dealer for the recommended oil

All the above answers saying to use a DOT or other fluids are wrong.

Never use DOT-3 or DOT-4 based fluid in a system equipped for Magura's Blue Blood or Vitamol V10 mineral oil. Using DOT-3/DOT-4 fluids will likely cause seals to fail in your clutch or brake cylinders.

To answer your question: yes, I believe both Blue Blood and Vitamol V10 products are equivalent SAE10 weight mineral oil.

Your motorcycle comes from Honda usually with 10w-40 mineral base motorcycle oil. You can use any oil that is JASO MA certified motorcycle oil. 10w-40 for cold climate. 20w-50 for warm climate/touring. Car oils use different additives and may cause scoring in certain types of cam bearings. Do not use any oil that says " Energy Conserving " on the label . It will shorten the life of your wet clutch and transmission gears. If you choose Synthetic oils, they will help your bike run cooler and shift easier. At 1300 km you should have no problem switching over to full synthetic motor oil.

it is allways good practice to renew the filter along with the oil

The hydraulic clutch uses mineral oil.

The hydraulic clutch wont cause slip, unless the slave cylnder piston is stuck. The hydraulic part just replaces the cable
If its a wet clutch make sure you are using motorcycle oil, some car oils can cause clutch slip, If your using a synthetic oil, you might try a mineral oil to see it it makes a difference, 600 miles is not enough to wear the plates

they can be a pain.......the best way to do so without a vacuum bleeder is to back fill it. buy a oil ratio syringe from walmart or an auto parts store. attach a short vinyl tube to it and **** it full of fluid. now remove reservoir cap and attach syringe to the slave cylinder. open bleed bolt and back fill slowly....tighten bleeder and work clutch to check for pressure and unsure there's no air.

BE SURE TO NOTE IF IT USES DOT4 BRAKE FLUID OR MINERAL OIL
MAGURA=MINERAL OIL
BREMBO=DOT4

SOME RACERS USE JOHNSONS BABY OIL AS ITS MINERAL OIL THAT YOU CAN SMELL IF IT LEAKS

probably find that the dog clutch on the end of the starter has given up the ghost,failing that,bmws are critical on the grade of oil used and if you have used a mineral rather than synthetic oil the dog clutch will be gummed up with deposits,sometimes a hot engine flush and new oil(synthetic)will fix it,hope this helps

try motul 5100 engine oil i have found sum mineral oil can make a cluch act this way

Do not try to out engineer the engineers. Do not take a drill to your clutch. Just put 10w40 in the crankcase and see if that takes care of the problem. How good is your clutch cable? Lubricated it lately?