A quick question. Today was my first time to finish a model in about 10 years. I put an oil wash on it for weathering, should I put a coat of future over it?
You don't have to but the oil wash may rub off over time. If you future coat it, it'll make the model pretty shiny if that's what you want. If you wish to protect the oil wash, then it's a good idea to put a thin final coat on it.