Kubota D1503-M-DI Workshop Manual page 39

03-M-DI Series, WSM
CAUTION
• When changing or inspecting, be sure to level and stop the engine.
NOTE
Lubricating Oil
With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use of a low-
sulfur fuel on-road vehicle engines. When an off-road vehicle engine runs on a high-sulfur fuel, it is advisable to
employ the CF, CD or CE lubricating oil with a high total base number. If the CF-4 or CG-4 lubricating oil is used with
a high-sulfur fuel, change the lubricating oil at shorter intervals.
• Lubricating oil recommended when a low-sulfur or high-sulfur fuel is employed.
Lubricating
oil class
CF
CF-4
CG-4
: Recommendable X : Not recommendable
Fuel
Low sulfur
(0.5 % ≥)
High sulfur Remarks
TBN ≥ 10
X
X
S-18
DIESEL ENGINE
W1035555
KiSC issued 10, 2009 A