I just ordered 2 gallons of zerorust for my truck. smile .Red oxide and black,got some of that prep-stuff too.It said I could thin it 15-20%with xylene,lacquer thinner,acetone,or acrylic enamel reducer.My buddy gave me a brand new hlvp spray gun yesterday,it has a 1.7 nozzle.what kind of thinner should I use and will this gun be allright or should I get another?thanks