This bike takes about 3.7 quarts.
21 psi
Not very much in today's economy. That is a shame because it is a nice bike!
3.3 quarts
I use SAE 10-40 takes about 3.2 liters. You have a dip stick also.
The Goldwing trike weighs 892 lbs or 404.6 kg.
50-100 USD
792 lbs
83 horsepower
1/5 of $1100 = $220
1100 Euros is 1,657.48 USD.
150psi , per. cyl. J.H
The HP 1100 series is actually cheap for what you get. Shop around.