87 octane should do fine. If you find it knocks a little then go to 89 octane. You can always use 91 octane, won't hurt, just in the pocket book.
The GL1100 has electronic ignition. No points.
83 horsepower
9.8 ounces
Honda Goldwing Gl1000 and gl1100 Motorcycle
1 down, and 4 up
dot 3 or 4
you remove the GoldWing cover on the left side of the bike above the passenger foot pedal
Yes, it is. However, there is separate gear oil in the final drive of the Goldwing, as it is shaft driven.
I use Motul 10w40. Check with your local dealer.
Any lower on those models, and the pipes will hit the road around the corners.
The oil drain plug is on the front of the motor below the oil filter.
yes and no, it has a glass indicator window but no dip stick