The 20W-50 costs $11.83 for a one-liter container ... Just in time for the start of the season, Porsche Classic is launching its own engine oil for air-cooled flat-four and flat-six engines ...

If you have time go to YouTube and learn about engine oil grade. It will help you. My recommendation Motul 7100 10w40 if you have ridden 2k km or else stick to yamalube.

The best thing i want to say is use only car dedicated 20w50 engine oil and se the result because 20w50 grade for cars are specially designed for wet clutch compatible engines of cars which is ...

There are several different kinds of oil out there for you to consider: 20W-50 is the standard for most V-Twin engines, but your motorcycle should list the weight and type of oil that it takes in ...