Well I start the car on after it's been turned off 12 hours and I leave it running for 5-10 minutes and the temp gauge slowly moves up?Engines generate heat, the temperature gauge shows you this, it's entirely normal.
unless of course you mean it's going higher than normal? Your explanation isn't very clear to be honest.
After it's been turned off for awhile is it normal for it to go up slowly even though it hasn't done long journeys?Best not to leave a car idling to warm up tbh. But yes, it's normal for a temp gauge to show it's gettin warm when it's on!
What?Nope. It should always read freezing cold.
After it's been turned off for awhile is it normal for it to go up slowly even though it hasn't done long journeys?