Atrium hydraulic reservoir
Rogersfamily, it's located inside the back compartment, right below the radiator reservoir. On our 2004 Atrium the hydraulic reservoir has a red sticker that says, "HYDRAULIC RESERVOIR FLUID ONLY. DEXRON III OR EQUIVALENT"
Hope this helps!
2004 Gulfstream Atrium 8410 AT 41'
330 Cat, 6-sp Allison
2001 Jeep Sahara 4.0L