TRUE DAT


you need to run an engine at the correct temp to be using the correct operating clearances
too hot or too cold & you're reducing the lifespan through premature wear

people have learned this through experience & they're trying to help you learn the lesson the easy way (ie without paying for an engine everytime you get it wrong!)

its up to you

you can take a horse to water but you can't make it drink

whichever way you go, have fun