Anti-freeze question

[Tx Firefighter]

Originally Posted by Longhorn Man

in these trucks without a/c... no need.
In many newer vehicles, esp with a/c... itmatters.
So yes, it is a good generic rule of thumb.
I can point out some others that haven't mattered for 50+ years that are still treated like gosple.

Never putting a battery on concrete ?
Putting clothes pins on the fuel line to cure vapor lock ?
Rev it real good before shutting it off to clear the carb ?