1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Tranny fluid: change it or leave it alone?

Thread Tools
 
Search this Thread
 
Old Sep 11, 2016 | 10:51 AM
  #1  
Mad_Coachman's Avatar
Thread Starter
Senior Member
Posts like a Turbo
 
Joined: Dec 2003
Posts: 249
Likes: 43
From: Baldwin,New York
Mad_Coachman will become famous soon enoughMad_Coachman will become famous soon enough
Default Tranny fluid: change it or leave it alone?

I bought a one owner car recently...1997 Oldsmobile 88 with 61k miles 2 months ago. The car runs great and shifts fine but I was wondering if I should change the tranny fluid just to be pro-active. Opinions anyone?
Reply
Old Sep 11, 2016 | 11:04 AM
  #2  
rjolly87's Avatar
Senior Member
True Car Nut
 
Joined: Jun 2003
Posts: 7,270
Likes: 465
From: Las Cruces, NM
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

I would. You can either pick up a transfer pump from harbor freight, and get about a gallon out, or dropping the pan works too, which also lets you change the filter. Refill with Dex VI.

No better time to preserve it then by starting regular maintenance now. Also an external cooler goes a long way. If you are doing a pan drop, a shift kit doesn't sound like a bad idea either. No better time than the present to make it last forever.

The fluid that came out of my '94 Regal with 75k miles was pretty dirty. I have already exchanged 4 quarts through the pump out method, and still plan on a pan drop at some point too.
Reply
Old Sep 11, 2016 | 11:39 AM
  #3  
Mike's Avatar
Retired
Certified Car Nut
 
Joined: Jul 2003
Posts: 17,960
Likes: 1,839
From: Dark Side, AZ
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

I wouldn't.

The flush methods are the devil. More people come here complaining of trans issues AFTER a flush has been done.

If the fluid is dirty, then a pan drop and filter change is ok. More than likely, the fluid is dirty because of all the clutch material suspended in it. This is a tell tale sign your trans is on its way out the door. Trans oil doesn't get dirty from the outside world unless you have a physical opening somewhere.
Reply
Old Sep 11, 2016 | 11:49 AM
  #4  
rjolly87's Avatar
Senior Member
True Car Nut
 
Joined: Jun 2003
Posts: 7,270
Likes: 465
From: Las Cruces, NM
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

I agree, DO NOT get a flush.

To clarify, I was referring to pulling fluid out through the dipstick filler tube.
Reply
Old Sep 12, 2016 | 10:54 AM
  #5  
2kg4u's Avatar
Senior Member
True Car Nut
 
Joined: Sep 2006
Posts: 4,816
Likes: 245
From: Windsor, Ontario / Detroit, Michigan
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Like the others are suggesting, it is a good idea to change the tranny fluid, but do a pan drop and filter change, not a flush.
Reply
Old Nov 5, 2016 | 08:48 PM
  #6  
Adam_Tinkerer's Avatar
Member
Posts like a V-Tak
 
Joined: Nov 2015
Posts: 78
Likes: 51
Adam_Tinkerer is on a distinguished road
Default

I agree. There'* so many differing opinions on this! I've always went with the pan/ filter change, gets some fresh juice in there without shocking the system. I run ford aerostars as my work van, and they have the A4LD, a terrible trans! But, I managed to run the first one 20K after the drive band broke. And my current DD had the OD band break, but I just bought a parts donor, it'* atf is still nice and red.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
CmptrNerd
1992-1999
22
Dec 1, 2004 02:18 PM
BluBonne
1992-1999
15
Aug 11, 2004 01:28 AM
glanghus
1992-1999
7
Apr 26, 2004 09:01 PM
grey3800
1987-1991
9
Sep 15, 2003 09:36 PM
OLBlueEyesBonne
Performance, Brainstorming & Tuning
6
Sep 1, 2003 09:30 PM




All times are GMT -4. The time now is 03:22 PM.