How often should I change the oil in a Kubota BX23S?

Change the oil in the Kubota BX23S every 200 hours of run time. Because it is measured in engine hours, log the hour-meter reading rather than a date.

What is the maintenance schedule for a Kubota BX23S?

The Kubota BX23S is serviced on engine hours, not miles. Key intervals include Engine Start System Check (every 50 hours), OPC System Check (every 50 hours), Grease Fittings (every 50 hours). Track the hour meter and service each item when its interval comes due.

Does the Kubota BX23S track maintenance by hours or miles?

By hours. Small engines and heavy equipment log run time on an hour meter, so their service intervals are hours-based. ServiceSage Auto tracks the Kubota BX23S by hours and reminds you when each service is due.

Kubota BX23S Maintenance Schedule

Kubota BX23S maintenance — the short answer

Oil: API CF or higher. Above 25C (77F): SAE30, SAE10W-30, or 15W-40. 0C to 25C (32F to 77F): SAE20, SAE10W-30, or 15W-40. Below 0C (32F): SAE10W, SAE10W-30, or 15W-40. · 3.3 L (3.3 US qts) with filter, measured at the upper level of the oil gauge · every 200 hrs
Engine: KUBOTA D902, liquid-cooled 4-cycle diesel, 3-cylinder
Tracked by: engine hours, not miles

Kubota BX23S maintenance schedule by engine hours

Interval	Service	Details
Every 50 hours	Engine Start System Check	Check the engine start (safety interlock) system.
Every 50 hours	OPC System Check	Check the OPC (operator presence control) system.
Every 50 hours	Grease Fittings	Apply multipurpose grease to the speed control pedal fitting, battery terminals, hood lock, and hood guide. Lubricate more often if operated in extremely wet and muddy conditions.
Every 50 hours	Wheel Bolt Torque Check	Check the wheel bolt torque.
Every 50 hours	Lock Lever Clean	Clean the lock lever.
Every 100 hours	Battery Condition Check	Check battery condition. If the battery is used less than 100 hours per year, check the indicator annually instead.
Every 100 hours	Battery Clean	Clean the battery.
Every 100 hours	Air Cleaner Element Check	Check the air cleaner element.
Every 100 hours	Fan Belt Adjust	Adjust the fan belt tension.
Every 100 hours	HST Neutral Spring Adjust	Adjust the HST neutral return spring. Consult your local Kubota dealer for this service.
Every 100 hours	Brake Pedal Adjust	Adjust the brake pedal.
Every 200 hours	Engine Oil Change	Change engine oil. First change after the first 50 hours of operation as a break-in service, then every 200 hours.
Every 200 hours	Engine Oil Filter Replace	Replace the engine oil filter. First replacement after the first 50 hours as a break-in service, then every 200 hours.
Every 200 hours	Transmission Oil Filter Replace	Replace the transmission oil filter. First replacement after the first 50 hours as a break-in service, then every 200 hours.
Every 200 hours	Toe-In Adjust	Adjust front wheel toe-in.
Every 400 hours	Fuel Filter Element Replace	Replace the fuel filter element. Emission-related critical part; consult your local Kubota dealer for this service.
Every 400 hours	Transmission Fluid Change	Change the transmission fluid.
Every 400 hours	Transmission Strainer Clean	Clean the transmission strainer.
Every 400 hours	Front Axle Case Oil Change	Change the front axle case oil.
Every 400 hours	Front Axle Pivot Adjust	Adjust the front axle pivot.
Every 800 hours	Engine Valve Clearance Adjust	Adjust engine valve clearance. Consult your local Kubota dealer for this service.
Every 1,000 hours	Air Cleaner Element Replace	Replace the air cleaner element. Emission-related critical part. Clean more often than normal in dusty conditions.
Every 1,500 hours	Fuel Injection Nozzle Pressure Check	Check the injection pressure of the fuel injection nozzle. Emission-related critical part; consult your local Kubota dealer.
Every 2,000 hours	Cooling System Flush	Flush the cooling system.
Every 2,000 hours	Coolant Change	Change the coolant (fresh clean soft water with anti-freeze).
Every 3,000 hours	Injection Pump Check	Check the injection pump. Emission-related critical part; consult your local Kubota dealer.

Kubota BX23S specifications

Type: Compact Tractor
Engine: KUBOTA D902, liquid-cooled 4-cycle diesel, 3-cylinder
Displacement: 898 cm3 (54.8 cu in), bore x stroke 72 mm x 73.6 mm
Oil type: API CF or higher. Above 25C (77F): SAE30, SAE10W-30, or 15W-40. 0C to 25C (32F to 77F): SAE20, SAE10W-30, or 15W-40. Below 0C (32F): SAE10W, SAE10W-30, or 15W-40.
Oil capacity: 3.3 L (3.3 US qts) with filter, measured at the upper level of the oil gauge

Kubota BX23S items without a fixed hour interval

Radiator Hose and Clamp Check: Check the radiator hose and clamp; replace if any deterioration (crack, hardening, scar, deformation) or damage occurred.
Radiator Hose and Clamp Replace: Replace the radiator hose and clamp. Consult your local Kubota dealer for this service.
Power Steering Oil Line Check: Check the power steering oil line; replace if any deterioration or damage occurred.
Power Steering Oil Line Replace: Replace the power steering oil line. Consult your local Kubota dealer for this service.
Fuel Line Check: Check the fuel line. Emission-related critical part; replace if any deterioration or damage occurred.
Fuel Line Replace: Replace the fuel line. Consult your local Kubota dealer for this service.
Intake Air Line Check: Check the intake air line. Emission-related critical part; replace if any deterioration or damage occurred.
Intake Air Line Replace: Replace the intake air line. Consult your local Kubota dealer for this service.
Engine Breather Hose Check: Check the engine breather hose; replace if any deterioration or damage occurred.
Engine Breather Hose Replace: Replace the engine breather hose. Consult your local Kubota dealer for this service.
Fuel System Bleed: Bleed the fuel system; no fixed interval is given, service as required.
Fuse Replace: Replace fuses as required; no fixed interval is given.
Light Bulb Replace: Replace light bulbs as needed; no interval is given in the table.