Honda GOLDWING GL1800/A 2015 Owner's Manual page 288

Spark Plugs
Coolant
Fuses
Final Drive Oil
standard:
BKR6E-11 (NGK) or K20PR-U11 (DENSO)
cold climate (below 5°C, 41°F):
BKR5E-11 (NGK) or K16PR-U11 (DENSO)
high speed riding:
BKR7E-11 (NGK) or K22PR-U11 (DENSO)
ethylene glycol antifreeze (silicate-free) for aluminum
engines in 50/50 solution with Pro Honda HP Coolant
or an equivalent distilled water
main A: 30 A
main B: 120 A
speed limiter: 60 A
external amplifier: 40 A
other: 30 A, 20 A, 15 A, 10 A, 5 A
Hypoid Gear Oil SAE 80
Quick Reference
Quick Reference