Water pump grease is on the same lines as a metric crescent wrench or a

1971 VW Beetle thermostat.


No it isn't! Water pump grease was used to fill the grease cup that
lubed the water pumps on early model cars. The appellation stuck over
the years as it was universally applied for other lube jobs [no pun
intendedG]. You can still get the same stuff in handy plastic cups at
any automotive store in shades of green or white [Lithium].
Bugs