so yesterday i went on a 20 mile ride to get my sister from my dad's and on the way there i noticed that since i had gotten my car's oil changed it was running a lot colder (i figured due to the cai and fresh oil) i was 1000 miles overdue for the oil:smash:, and it had been running hotter (around the m/a of NORMAL) but the day before this happened i got my oil changed. so i got to my meeting spot for my dad, turned the car off and sat there for like 10 minutes. my dad arrived and i got my sister and began the journey home. about two minutes later i looked down and my temp gauge was past the the L of NORMAL and was still climbing. i pulled over, pooped the hood and felp my cai and intake manifold and everything was fine to touch. nothing was really that hot at all. so i hopped back in and continued on my way. and about 5 minutes later it was running at normal/cold temps again. what happened?? is something like my radiator about to go??