What type of hydraulic fluid do you use for a 1974 ford 4500 tractor with loader and backhoe?

For a 1974 Ford 4500 tractor with a loader and backhoe, it is recommended to use a hydraulic fluid that meets the specifications of Ford M2C-134-D or M2C-134-A. A common choice is a high-quality hydraulic oil, such as ISO 32 or ISO 46, depending on the operating temperature range. Always check the owner’s manual for specific recommendations and ensure the fluid is suitable for use in older equipment to maintain performance and longevity.