I own a 2000 Cub Commercial 3654 (one of the first) that just turned 500 hours. I have ordered a new Hydraulic Oil Filter and need to know a brand and where to purchase the correct 20-50 Hydraulic oil. The tank and cap is 2-1/4gal. Cub dealer says 13.00 per quart. Seems high. Is there an alternative?
