called around, nobody has it. called a kenny parts dept and peterbilt dept. and truck pro. Truck pro is pushing Citgo Mystik, Peterbilt was pushing Mobil Delvac Syn.... I called the # on the Road ranger website and they gave me a # to a dist who took my info down and will email me the pricing and availability. Wow. what a PITA. I'll give them a few days to email me, if not Next time I'm out probly picking up Mobil 1 for $8.99/qt locally and calling it good. Amazing how many products are made, but not available.