• What is Ambient Temperature and what should my pressure readings be?
• If I use a universal gauge on a piercing valve can, can I remove the gauge before I've used the entire can without leaking the remaining refrigerant into the atmosphere?
• How to recharge with a T-handle or Gauge-Handle style recharge hose?
• There are no expiration dates on your products. Should I be concerned that the refrigerant in a piercing valve can is too old to work correctly?
• How to recharge with a trigger style recharge hose?
• Are there any special tools required with the new self-sealing valve system?
• Is an overcharged system dangerous?
• Will using the new recharging system take longer?
• Does refrigerant go bad?
• If I use a DVA-1 adapter to connet my gauge to a 2018 can, do I leave it on when I'm done?
• My pressures are correct but I am still getting warm air from the vents, why?
• Why does my gauge go into the red/high pressure?