1. How often should one check them
2. what kind of oil and how to fill
Thanks
1) before every trip
2) 80w90 or equivalent
3) little plug in middle of cap or if not available there's a plug on the side of the cap, plug should be close to the top to fill.
1. How often should one check them
2. what kind of oil and how to fill
Thanks
My Chassis mechanic said to NOT replace with synthetic if there was not already Synthetic in there. You'll need to ask FRCC what they used at the factory, but likely is was synthetic
My guy says that synthetic and regular oil do not work and play well together in the wheel hubs.