Kubota BX23S engine oil
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K2892-7121-3 operator manual, original BX23S. North American fluid guidance; normal mineral-diesel schedule. Biodiesel and severe conditions need additional or shorter intervals.
Check the manual and machine versionApproximate capacity in the cited source
3.3 liters
Original manual: API CF or higher, subject to its listed exclusions
With filter. SAE 10W-30 or 15W-40 appears across the temperature table; SAE 30 above 25°C, SAE 20 at 0–25°C, SAE 10W below 0°C are also listed. Original North American table lists CF / CF-4 / CG-4 / CH-4 / CI-4 for this engine; explicitly excludes CJ-4. Confirm current approved oil with Kubota.
Source: BX23S / LA340 / BT603 operator manual K2892-7121-3 · pp. 27, 115–116When is it serviced?
Change engine oil and filter
Every 200 hours
Source: BX23S / LA340 / BT603 operator manual K2892-7121-3 · pp. 113–114Change engine oil, engine oil filter and transmission oil filter
Open complete maintenance scheduleFirst 50 hours only
Source: BX23S / LA340 / BT603 operator manual K2892-7121-3 · pp. 113–114