KTM 125 SX EU Owner's Manual page 128

22 SUBSTANCES
Super unleaded gasoline (98 octane), mixed with 2-stroke engine oil (1:40)
According to
–
DIN EN 228
–
JASO FC ( p. 129) (1:40)
Mixture ratio
1:40
Supplier
Motorex ®
–
Cross Power 2T
2-stroke engine oil ( p. 124)
Super unleaded (ROZ 98 / RON 98 / PON 94) ( p. 125)
126