Nissan Forum banner

1 - 20 of 32 Posts
N

·
Guest
Joined
·
0 Posts
Discussion Starter #1
yo, wasup, had a question for ya'. does downshifting on an automatic cause any damage to the engine? :D
 

·
Team Serious
Joined
·
2,132 Posts
nissanracer805 said:
yo, wasup, had a question for ya'. does downshifting on an automatic cause any damage to the engine? :D

i dont think it does.... i drop it back into 2 if i am under 65mph and i want to get onto the pkwy.....i have been doing i for a while now and no problems yet....
 

·
Please Shift Here
Joined
·
6,696 Posts
I downshift all the time. I say it's safe to go down to 2nd gear ok and don't be scared to use the o/d button. Downshifting to first is kinda damaging and uncomfortable and you have to do it at a really low speed (under 2000rpms). If you continue, I recommend you get a tranny cooler to eliminate some of the extra heat that is being stressed on the trans.

It's a pretty good way to slow down or speed up it you downshift and floor it (get more top-end power), but don't forget that it's better to replace brake pads than a transmission.
 
N

·
Guest
Joined
·
0 Posts
Discussion Starter #4
hey, thanks for the info guys, i've just never heard of downshifting an auto, just on a standard transmission, i've downshifted to 2nd on my auto a couple of times but wasnt too sure of the side effects, like if it might make the transmission wear out quicker or somethin'. anyways, thanks.:D
 

·
Registered
Joined
·
249 Posts
Downshifting an automatic is bad. It's hard on the tranny & the shifter cable. I would not recommend doing it all the time.
 
C

·
Guest
Joined
·
0 Posts
Discussion Starter #7
Well, doesn't the automatic transmission "automatically" down shift when you push the pedal down?

Don't rev your engine on Neutral then shift to drive... it'll screw your transmission... and i wouldn't want that to happen. :p
 

·
Team Serious
Joined
·
2,132 Posts
when i was looking over my owners manual it sounded to me like the were saying that i can put the car into 2nd anytime i am under 64 mph i beleive it was.. it never said anything about not shifting from drive to 2nd...it just said never go over 64 in 2nd
 

·
Driver
Joined
·
736 Posts
JayL1967 said:
Can some body explain to me when I have to use the o/d button and when I can downshift to 2?
TIA

Jay L.
Say you want to keep the rpms higher on the street for better acceleration, turn o/d off. If you're going up a hill and the car is in 4th and lagging bad, turn o/d off. If you're still going up the same hill, going less than 65mph and still lagging, put it in 2. Be creative:D
 

·
Please Shift Here
Joined
·
6,696 Posts
crzflip02 said:
Well, doesn't the automatic transmission "automatically" down shift when you push the pedal down?
it does, but only to a certain extent. It decides on it and sometimes it will and sometimes it won't. when I want to reach into that top-end power, I downshift myself to be sure it'll be in the gear I want when I want.
 

·
Driver
Joined
·
736 Posts
It's safe. I've driven in the city with o/d off since I got the car in '95. After 7 years, no problems, and I do 90% city driving. Only downside is a little lower fuel economy, but I can always turn it on if I want to save gas.
 

·
Registered
Joined
·
123 Posts
Running with O/D off will never damage your tranny, unless its already got problems, but your gas milage will not be great. Also, downshifting from anything to "get more power" will fry an auto tranny. The tranny as not designed to engine brake or run at a higher RPM like you can with a manual.
 

·
Team Serious
Joined
·
2,132 Posts
i knew nothing about overdrive and i turned it off one day and started driving i must of hit about 45-60 somewhere in between there...when i stopped at the light the car kept jerking and almost died....that was the last time i shut it off.....lol
 

·
Driver
Joined
·
736 Posts
selrider99 said:
i knew nothing about overdrive and i turned it off one day and started driving i must of hit about 45-60 somewhere in between there...when i stopped at the light the car kept jerking and almost died....that was the last time i shut it off.....lol
That jerking can't really be only because you hit 60mph with o/d off...I mean, 3rd gear can go to top speed, and it does if you floor the pedal even with o/d on. Also, don't you think the nissan engineers would have not put an o/d button if it was too risky to use it.
 

·
Registered
Joined
·
323 Posts
hah, i used to have an 89 camaro I drove in overdrive all the time until I started shifting into drive to get my RPMs up higher for a nicer acceleration on my low end, needless to say my too fast driving and the fact I didn't take care of it killed it oh, and my girlfriend/friend, whatever she has an 86 Toyota Cressida, never drove it out of overdrive, so I decide to see what kindof condition it's in, as were driving down the highway I take it out, it freaked, she freaked, i turned it back on. it's good for fuel economy not for power, and vise versa for straight drive.
 
N

·
Guest
Joined
·
0 Posts
Discussion Starter #19
so, why did the freakin' auto engineers put the 1-2-D-N-R-P
instead of just D-R-N-P..........lol.... i'm thinking you can downshift to 2nd gear without causing problems.......weird:D
 

·
Registered
Joined
·
672 Posts
they put that there in case you are climbing up steep inclines and stuff. its less strees if it is on a lower gear.
 
1 - 20 of 32 Posts
Top