To be certain, refer to your owner's manual. It will show you exactly where the oil fill tube is located. If you don't have the manual, you can often find a digital copy online by searching for "1956 Ford 600 tractor owner's manual."
Important Considerations:
* Check the dipstick: Before adding oil, check the dipstick to see how much oil is already in the engine. Avoid overfilling.
* Correct oil type: Use the correct type and weight of oil as specified in your owner's manual. Using the wrong oil can damage your engine.
* Cleanliness: Keep the area around the oil fill tube clean to prevent dirt from entering the engine.
Finding the correct location with visual inspection can be challenging, hence why the owner's manual is critical. Look for a tube or opening on top of the engine that resembles an oil fill point. It might be somewhat hidden, but it will be there.