Since I've had my car it has always run at 3/4 sitting still...this is of course dependent on the weather. In summer months she gets up there in winter it never move past half temp. I'm by no means a car person but are the fans turning on when they are suppose to? If the thermostat is good, and the coolant is good, and there are no leaks so the level is good...what else can it be? Could there be a pump problem I wonder. Maybe one of these engine gurus will be kind enough to help you out.
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