Restored my NP246, filled in 2 liters of fresh fluid, done. I'm pretty sure it's just a blue colored ATF, intentionally colored blue so you know where the leak is coming from (transfer case or transmission). I've never been able to spot a leak by looking at the liquid visually because if you notice it it's always gone bad, but who cares. It's not that expensive, and that's what GM demands.
Anticorrosive coating / Anticorrosive Defender Auto 150 ml. (Transparent)
24 Review
π Permatex 20353 Ultra Disc Brake Caliper Lube, 2 oz. β Advanced Lubrication for Optimal Brake Performance
9 Review
Multipurpose grease 420 ML With nozzle
9 Review
Synthetic engine oil LIQUI MOLY Molygen New Generation 5W-30, 1 l, 1 kg, 1 piece
26 Review