Supercharged111
Truly Awesome
- Joined
- Aug 20, 2015
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Block drains are the PREFERRED method of dropping coolant level before working on the engine.
All my vehicles get brass draincocks instead of the OEM iron/steel plugs, except when the block drain hole is being used as a port to attach the knock sensor.
Yes, there's a solid 2 gallons the plugs drain that the radiator does not.