VESPA GTS 250 i.e. Manual page 40

CAUTION
WHEN REPLACING THE HUB OIL DO NOT LET THE OIL COME INTO CONTACT
WITH THE REAR BRAKE DISC.
CAUTION
FOR OIL REPLACEMENT, CONTACT ANY AUTHORISED SERVICE CENTRE AS
THEY ARE EQUIPPED TO DISPOSE OF USED OILS IN AN ENVIRONMENTALLY
FRIENDLY AND LEGAL WAY.
Recommended products
AGIP ROTRA 80W-90
Rear hub oil
SAE 80W/90 Oil that exceeds the requirements of API GL3 specifications
Characteristic
Rear hub oil
250 cc
40