When servicing your Resolve Dropper Post, you'll want to keep a bottle of Wolf Tooth's low-foam Refill Fluid V2 to hand, in case of fluid loss during the procedure. This fluid has been especially formulated to improve self-bleeding performance, especially in cold weather.
Although it's compatible with its predecessor, Refill Fluid V1, and can therefore be used in any Resolve Dropper Post, draining any remaining fluid prior to adding V2 is recommended, in order to see the promised improvements.
If you're unsure which fluid your cartridge is currently filled with, please contact Saddleback to check, but you should be able to tell by its colour. V1 is a clear, amber-shaded fluid, while V2 is light blue.
For optimum service results, disassemble the dropper post cartridge and clean all parts using a lint free cloth and isopropyl alcohol before adding Refill Fluid V2, to ensure no traces of V1 remain.