I have an Autometer Oil TEMPATURE (not Pressure) gauge in my 90 gt. In 1st and second gear just strolling around town, the car always runs at 210 Degrees and higher, and the car runs BAD at these temps. But when i get into 4th and 5th on the highway it drops considerably to 160-170, and the cars runs Very smooth. SO how can i drop the Oil temps in town, what can i do to make it no run so hot....