Oil Specification And Grade; Cooling System; Corrosion Inhibitors - Triumph Rocket III Owner's Handbook Manual

Maintenance and Adjustment

Oil Specification and Grade

Triumph high performance fuel injected
engines are designed to use 10W/40 or
15W/50 semi or fully synthetic motorcycle
engine oil that meets specification API SH (or
higher) AND JASO MA.
Do not add any chemical additives to the
engine oil. The engine oil also lubricates the
clutch and any additives could cause the
clutch to slip.
Do not use mineral, vegetable, non-detergent
oil, castor based oils or any oil not
conforming to the required specification. The
use of these oils may cause instant, severe
engine damage.
60

Cooling System

To ensure efficient engine cooling, check the
coolant level each day before riding the
motorcycle, and top up the coolant if the level
is low.
Caution
A year-round type of anti-freeze is installed
in the cooling system when the motorcycle
leaves the factory. It is coloured green,
contains a 50% solution of ethylene glycol,
and has a freezing point of -35°C (-31°F).

Corrosion Inhibitors

To protect the cooling system from corrosion,
the use of corrosion inhibitor chemicals in the
coolant is essential.
If coolant containing a corrosion inhibitor is
not used, the cooling system will accumulate
rust and scale in the water jacket and radiator.
This will block the coolant passages, and
considerably reduce the efficiency of the
cooling system.
The anti-freeze recommended
Specification section, mixed 50/50 with
distilled water will provide the necessary
corrosion inhibition.
in the