Auto Tranny Overdrive - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jay526 · 07-26-2002, 03:35 PM

I've got overdrive on my auto tranny and I am not sure if I should leave it on or off during daily driving.

I've never really dealt with auto tannys but I know you are suppose to leave the OD off in the streets and on in the highways.

But the 240sx seems different. The tranny seems jerky when I leave it off in the street and it seems better when I leave it on.

So what's recommended... leave it on or off?

Thanks.
--Jay

Starlin · 07-26-2002, 03:53 PM

Normally the OD only kicks on at high speed. It is like having an extra gear for highway driving. That said: My sister's 99? 200sx operates like yours. It shifts a lot stiffer when the overdrive is off. It is almost like having a shift kit in the thing. I only turn it on for highway driving anyway and when climbing a steep hill I turn it off because it is a gutless piece of crap and keeps shifting up and down between 3rd and OD.

Don't know if that helps you any.
Starlin

DriftMonkey · 07-26-2002, 09:47 PM

i never bother with it  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt='

'>  my brother told me to leave it in when i frist gotr the car so i leave it in all the time...the car runs well enough with it in...so i actually never drove with it off....hehe

*SaintlyCharBoy* · 07-26-2002, 10:34 PM

remember, it's effectively for mileage at cruising speed.

it's more fun to drive with it off, and you actually see better city mileage w/ od off

[edit] because the shift points piss me off, occasionally i will use the selector to "shift" the auto, that is keep it locked into a lower gear, and then allow it to shift up my bumping the lever... [/edit]

07-26-2002, 03:53 PM	#2
Starlin Leaky Injector Join Date: Jul 2002 Posts: 128 Trader Rating: (0) Feedback Score: 0 reviews	Normally the OD only kicks on at high speed. It is like having an extra gear for highway driving. That said: My sister's 99? 200sx operates like yours. It shifts a lot stiffer when the overdrive is off. It is almost like having a shift kit in the thing. I only turn it on for highway driving anyway and when climbing a steep hill I turn it off because it is a gutless piece of crap and keeps shifting up and down between 3rd and OD. Don't know if that helps you any. Starlin __________________ '89 240 SX: Chrome Tinted Windows/5 speed '67 Ford Fairlane: Edlebrock:RPM Intake/Cam & Lifters/750cfm Carb/Alum. Heads/Alum. Valve Covers/Alum. Air Filter, Hooker Headers, Griffen Alum. Radiator, Mallory Ignition Sys, 9mm Ford Racing Wires, Flowmaster Exhaust + misc = 560hp/12.6 sec 1/4 Mile

07-26-2002, 09:47 PM	#3
DriftMonkey Zilvia Member Join Date: Jun 2002 Location: North East Posts: 256 Trader Rating: (0) Feedback Score: 0 reviews	i never bother with it  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=''>  my brother told me to leave it in when i frist gotr the car so i leave it in all the time...the car runs well enough with it in...so i actually never drove with it off....hehe __________________ Coastek240 still owes me a bumper or 82 bucks, which ever he decieds to send first.

07-26-2002, 10:34 PM	#4
SaintlyCharBoy Premium Member Join Date: Jan 2002 Location: Bow, NH Age: 43 Posts: 849 Trader Rating: (1) Feedback Score: 1 reviews	remember, it's effectively for mileage at cruising speed. it's more fun to drive with it off, and you actually see better city mileage w/ od off [edit] because the shift points piss me off, occasionally i will use the selector to "shift" the auto, that is keep it locked into a lower gear, and then allow it to shift up my bumping the lever... [/edit] __________________ 92 vert - KADE + VH41 + GM MA5 = too many parts in the garage 95 base - retired

07-26-2002, 03:35 PM	#1
jay526 Join Date: Jun 2002 Posts: 24 Trader Rating: (0) Feedback Score: 0 reviews	I've got overdrive on my auto tranny and I am not sure if I should leave it on or off during daily driving. I've never really dealt with auto tannys but I know you are suppose to leave the OD off in the streets and on in the highways. But the 240sx seems different. The tranny seems jerky when I leave it off in the street and it seems better when I leave it on. So what's recommended... leave it on or off? Thanks. --Jay