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Read articles →This is a real owner walking through the first 50-hour oil change on his own Kubota L3902, not a dealer demo. It covers popping the hood, cleaning radiator fins, the split oil pan's dual 3/4-inch drain plugs, priming the new filter gasket, refilling with 7 quarts of 15W40, and checking the dipstick afterward. Useful for new L3902 owners wanting a straightforward, tool-level walkthrough of a routine service task.
Posted by the John Dewey Outdoors channel, an owner sharing hands-on maintenance on his own tractor rather than a dealer or sponsored review.
The owner's manual says it takes 7.1 quarts, so the owner put in seven quarts of 15W40.
The oil pan is split into left and right sides, each with its own 3/4 inch drain plug that you remove to let the oil drain into a pan.
You need an oil filter wrench and a 3/4 inch socket or wrenches for the drain plugs; the owner used wrenches and they worked fine.
Start the tractor, then check the oil level on the dipstick on the left side of the engine and look for any leaks before using it again.
