KTM 390 Duke Series 2019 Owner's Manual page 241

The mixture ratio must be adjusted to the necessary antifreeze protection. Use distilled water if the coolant needs
to be diluted.
The use of premixed coolant is recommended.
Observe the coolant manufacturer specifications for antifreeze protection, dilution and miscibility (compatibility)
with other coolants.
Recommended supplier
MOTOREX ®
–
COOLANT M3.0
Engine oil (SAE 15W/50)
Standard/classification
–
JASO T903 MA2 ( p. 244)
–
SAE ( p. 244) (SAE 15W/50)
Guideline
–
Use only engine oils that comply with the specified standards (see specifications on the container) and that
possess the corresponding properties.
Semi-synthetic engine oil
Recommended supplier
MOTOREX ®
–
Formula 4T
SUBSTANCES 24
239