1.   The driver is experienced, the car is powerful, the engine is tuned, but the clutch will not engage.

2.   The mechanic tuned the engine.

3.   He keeps his engine tuned for optimal performance.

4.   It is more important to worry about factors that differentiate the premium vehicles, like tuning their engines for distinctive performance.

5.   Make sure your engine is tuned to factory specs before you make your trip.

6.   Since the range of gear ratios is virtually infinite, the engine can be tuned for optimum fuel economy and low emissions.

7.   They tested and tuned the engines not as engineers trying to hit a number, but as ordinary drivers.

8.   They changed the oil, tuned the engine and rotated all four tires on his ego.