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I was wondering about shifting from od to 3d, or even from 3d to 2nd while on the move. If I do it occasionally without overreving it do you think it would do any damage?
I have heard of some people shifting through the gears to save fuel during city driving. They also believe it helps save the transmission. I have a hard time believing this and think that since the car is an auto you should drive it like an auto. It probably won't hurt to do this every now and then but it may wear on the vehicle over a prolonged period of time. I have a 3.90 diff and a tune so my tuner told me to never do this.
I manually work the gears all of the time - 6 years & 45K miles - no problem. As long as you're not over-revving you're fine.
And before the whiners start asking why I bought an auto instead of a 6-speed, I'd just had surgery on my left knee and knew it would be out of commission for almost a year.
I installed a shift kit so I can shift up and down shift on the fly with no problems. A tune and added pressurs helps but it does not speed up shifts inspite what others might say. You will know what a slow shift means if you manual shift at wot at 5,800rpm you will bounce off rev limiter several times befor trans shifts. With a trans go kit shifts are BAM right now no delay. I love it total control like it should be.
I do it all the time (as a method of slowing the car without using the brakes and then accelerating using the gear I choose instead of letting the transmission choose)...as a matter of fact I go from OD to 2nd. The transmission will not grab the gear selected if the rpms are too high. 100K daily driver, no transmission problems yet. Besides, isn't that why they put the numbers on the shifter?
I just remembered something...don't some C6 vetts have a paddle shift on the steering wheel? (Rhetorical question!!!!) Seems like the engineers at GM are begging us to shift it around some!