Lucas Oil 10790 Primary Chaincase Oil - 1 Quart

This stuff is legit. I recently had a clutch cable break. I was running formula+ in the primary. I installed this when I installed the new cable as the clutch was slipping prior. Shifting into first is smooth, and primary noise is minimal at idle. So far it’s doing great. Maybe 200ish miles.

Great lubicrent works perfectly in my bike for what I needed it to do perfect. Weight, it definitely makes the engine run a lot smoother, and it is a very good value for the money.I would highly recommend this product

Whether you own a sport bike or harley davidson Lucas is the best. My Vtwin air cooled runs way smoother and quieter. Very noticeable. If you love your bike...then there is no substitute. Think about putting HD oil same viscosity in all 3 engine components? That doesn't make sense. Use the 3 different Lucas for all 3 application. Do NoT listen to the fat HD guy

It's Lucas what can I say about it it's always awesome couldn't ask for better wouldn't run anything else in my Harley

I've long been a fan of Lucas products. This primary oil seems to work great and hasn't caused any shifting or noise issues.

I feel like it did the job I hired it to do. Shifting was smooth when cold, but after heating up, same old Harley clunk, so no real improvement in shifting…

Great primary chaincase oil. Performs as expected

Serves its purpose. Trusted name, cant go wrong. Will purchase again!