Honda AQUATRAX R-12X 2005 Owner's Manual page 214

Specifications
Fuel & Lubricant (cont'd)
engine oil
recommendation
lubricant
cooling system
Capacities
passenger capacity
maximum weight
capacity
cargo capacity
206
Technical Information
API Service Classification SG or higher except oils labeled as energy
conserving on the API service label
SAE 10W-40
JASO 4T Standard MA or MB
Pro Honda GN4, HP4 or HP4M 4-stroke oilïï or an equivalent motorcycle oil
Water-displacement corrosion-proof lubricant (without Teflon or molybdenum
additives, such as CRC 6-56 or equivalent)
Water-cooled, open circuit, direct flow from propulsion system
operator and one passenger
338 lbs (153.5 kg)
rider, passenger, all cargo
front storage compartment: 6.6 lbs (3 kg)
glove box : 1 lbs (0.5 kg)