Install an Oil Cooler, make sure your radiator is maintain at good condition, and engine is up to date serviced records, then the temp will maintain at safe level. Should you have after markets performance parts like bigger Turbo, cam shaft, performance muffler, and etc...then your temp will be more on the high side as all the sensors are designed for OEM parts. Unless you had change to an aftermarket thermostat and others, then the temp range might be more stable but still higher than original range.