I have a 95 4dr gsr and i dunno if its all GSR's where the rpms get really high. and when do i shift or when is it recomended to shift to get the most out of ur engine. like when i go 60 my RPMS are at 3000. and is it bad to shift at 2000 for all gears if i wanted to save gas? and all this is under normal drivng not racing or anyhting. Thank you