We own a 1992 Gulfstream Conquest. It is probably very similar to yours. The owners manual is very generic. There should be a label in cabinet over the kitchen that lists tank capacities etc.. We have had ours for nine years and have only had minor problems. This year was the year for replacing old worn out stuff. Replaced the roof, water heater, brakes, tires, LP regulator, belts, hoses, water pump. I upgraded the converter/charger to a PD9160 with golf cart betteries a few months after we bought the rig. The OEM converter charger is a POS and will ruin your batteries. The genearator has been pretty reliable. I had to replace the starter and clean the carb once.