Tip: Many vehicles have a pressurized coolant recovery system called an expansion tank that makes opening the radiator unnecessary. These systems are considered "sealed" because the safety pressure ...

Most vehicles have coolant recovery systems. Some are pressurized and serve as the fill tank when you need to add coolant, but there are many vehicles still on the road that require you to add liquid ...

Q. We have a 1908 vacation home in Rhode Island with forced hot water heat. Around when we purchased it back in the ‘90s, I asked an HVAC contractor whether we could put antifreeze into the system, ...