[dvj]

What are the effects of driving around in 4th between 2800- 3200 RPM on the highway instead of upshifting to 5th? I know it decrease gas mileage but does it decrease engine life?I just took a 1000 mile trip in the car and kept it in 4th over half of the trip. It sounds so sweet. I plan to make this a track- only car when I reach 40-50,000 miles. Thanks.

 

[TXBullitt]

You might not get the mileage if you drive the freeways all the time.

4th's final ratio is 1.00. That's what all of the cars had before 5 speeds came along.

 

[01GTCOUPE]

It will not hurt your engine one bit. In fact, it will probably keep it running better 'cause it will stay cleaned out. Lugging around at low RPM's really loads up a motor. I drive in 4th exclusively on the highway, unless I'm up for a power trip at 90 or 100 MPH. Even then, a drop into 4th just feels right.