And then there is me. I often use tygon line for glow if that's all I have in my shop. Never had a problem with it. A fuel dot is a fuel dot and the o-ring is good for either gas or glow. Neoprene doesn't care at all. I even use a glow hand crank I use for pumping gas, no problems at all, the plastic just doesn't seem to care what you pump through it. I don't use an electric glow pump for gas, it's not the pump that scares me but I wonder about the electric motor. I have one friend that had used his glow electric pump for gas for 10 years without a problem but I always worried about a short in the system and fire. Other then that the pump itself doesn't care. Give the filler a try and if it starts leaking then change it, you never know until you try.