I have a 93 Corsica 3.1 87000 mi, most of the time my temp gauge stays around the 1/4 mark, in town or the highway, but as soon as the temp outside warms to 70-75 the temp gauge will go up almost to the 3/4 mark in town, when I resume speed it cools off again (even moving 60 feet brings it down) the coolant level is fine and I never have to add coolant, I've heard that corsicas have bad temp gauges, but how do you test it, it seems to me that most other cars i've driven the temp gauge stayed put but this one fluctuates, the car has never overheated and I can hear the fans come on when getting toward the 3/4 mark, I have noticed an oil leak from the lower intake gasket, could this have something to do with it? intake gaskets are another known problem with this engine, any information is appreciated.
