Originally Posted by
ColonelJLloyd
It would seem so. I haven't had an issue with mine and neither have any of my friends that use them.
sometimes these "screw on the tube" style injectors have air-pocket issues (so can the metal can "Dualco style", for that matter). You have to work out the air bubble(s) by squeezing the plastic tube and working the plunger before you'll get any grease to flow.