Originally Posted by super_stanchy
transmission fluid??!?!?! what?!?!
Yep. The old instruction manual for the Stingray (and other BE blowbacks) listed good old Automatic Transmission Fluid as an approved lube. Works too. A bit thin, and the stuff stains, but won't harm any of the seals. Heck, compared to a car's transmission the stingray has hardly any seals at all.
Hoppes No. 9 gun oil is another non-standard lube that works great (remember use just the oil, NOT the solvent).
The more standard paintball gun oils are best though. Or air tool oil. NO WD-40! (sorry, been teching guns too long, bit of a nervous tick)
Don't use grease, like Dow33, at least on the moving parts (the non-moving seals would be ok). It's too thick and will slow down the cycle speed.