It is currently Wed Nov 26, 2014 2:20 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Fri May 28, 2010 9:17 am 
Offline
SLE Member
SLE Member

Joined: Tue May 27, 2008 2:04 pm
Posts: 46
Year and Trim: 1992 SE
I've got a '92 GM 3800 with 175k miles on it. I don't think the transmission fluid has ever been changed. I'm about to take a trip with it, and was wondering if I should swap in some fresh fluid?

There is so much debate, with some saying this will ruin the transmission, and others saying it won't. I'm not talking about a full flush, I would just use a siphon and pull out some of the old fluid, and replace with new.

I worry about the old fluid being able to handle the heat and stress of the 8 hour trip.

Thanks.


Top
 Profile  
 
PostPosted: Fri May 28, 2010 9:35 am 
Offline
Administrator
Administrator
User avatar

Joined: Mon May 19, 2008 7:01 pm
Posts: 15961
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
What I would do is drop the pan, let whatever will drain, drain, and put in a new filter. Clean the pan and magnet while it's off.

There might be proof out there why a flush can kill a tranny. But it's mostly a disturbing trend where high mile trannys die soon after a flush. Knocking stuff loose, removing gunk that was holding things in place, etc...

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Sub, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angle Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser.


Top
 Profile  
 
PostPosted: Fri May 28, 2010 10:44 am 
Offline
Posts like an L36
Posts like an L36
User avatar

Joined: Fri May 23, 2008 12:26 am
Posts: 1092
Location: Fitchburg, MA
Year and Trim: 92 SE- 231K, 96 SSEi- 111K
Wikoff is right, and if you are still a little worried, buy a bottle of lucas trans fix. it's really thick and many here have had great results with it in high mileage transmissions, including those that were poorly maintained.

_________________
- Rachael
nos4blood70 wrote:
All cars suck, just gotta try and find one that sucks less and makes you smile most.

Image


Top
 Profile  
 
PostPosted: Fri May 28, 2010 12:01 pm 
Offline
Retired Gearhead
Retired Gearhead
User avatar

Joined: Mon May 19, 2008 12:35 pm
Posts: 3989
Location: Ames, Iowa
Year and Trim: 98 Caravan is the daily driver 215K
The procedure for dropping the pan, changing the filter and replacing about half the fluid is described here in a Techinfo article.

_________________
Image



1998 3.8 Dodge Caravan 214K
2000 3.3 Dodge Caravan 175K
1949 Plymouth Special Deluxe 4-dr sedan 25K (needs some work!)


Top
 Profile  
 
PostPosted: Fri May 28, 2010 3:08 pm 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Tue May 27, 2008 8:53 am
Posts: 4347
Location: Las Cruces, NM
Year and Trim: 1993 Buick Park Avenue
I have come to the conclusion that if the flush kills it, it was bound to happen soon anyway, and was only being held together by the crap you just flushed out. With that being said, I just had a pan drop and filter change on mine, and it still seems to be happy.

_________________
~Randall~
Image
01bonneSC wrote:
Just take your engine out for a nice dinner and some drinks, she'll let you put your hands anywhere.


Top
 Profile  
 
PostPosted: Fri May 28, 2010 3:09 pm 
Offline
Administrator
Administrator
User avatar

Joined: Mon May 19, 2008 7:01 pm
Posts: 15961
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
Well, there's no reason to spend the extra money just to speed up the failure.

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Sub, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angle Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser.


Top
 Profile  
 
PostPosted: Fri May 28, 2010 3:46 pm 
Offline
Certified Bonneville Nut
Certified Bonneville Nut

Joined: Fri May 23, 2008 1:15 am
Posts: 3177
Location: Corning, NY
Year and Trim: 2012 Eco
Pan drop, filter change, and new high-mileage ATF fluid. Castrol High Mileage is extremely thick fluid, and is on sale at Pep Boys right now...

_________________
2012 Chevrolet Cruze Eco - Current car
Image Image
1999 Buick LeSabre Custom - Former car

Learn from the mistakes of others, that way when you mess up you can do so in new and interesting ways.


Top
 Profile  
 
PostPosted: Sat May 29, 2010 6:11 pm 
Offline
Posts like an L36
Posts like an L36

Joined: Wed Jun 04, 2008 7:55 pm
Posts: 1178
Year and Trim: 2003 Lesabre Limited, 2008 Cobalt, 2014 Malibu
zirconx wrote:
I've got a '92 GM 3800 with 175k miles on it. I worry about the old fluid being able to handle the heat and stress of the 8 hour trip.


What color is the fluid now? Pink? Clear. Brown but clear? Brown and cloudy?

Since that had Dexron II or Dexron II E or Dexron III as the original fluid, I 'd be careful to buy replacement fluid that was the most like the original. I would not put in the Dexron VI, even if it's listed as acceptable.

If it's clear or brown, my own opinion would be drop pan, replace filter, and put in the 6-7 quarts of Dexron III. The fresh detergent in the new fluid will start to pick up any deposits. I would not add any additives. Let the detergents do their job, slowly, hoping not to cause any particles to come loose, if there are any.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours [ DST ]


Related topics
 Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. 115,000 Miles... Transmission Fluid Change or Let It Be?

wiigamer99

13

1366

Mon Jan 30, 2012 10:12 pm

94SilverSSEi View the latest post

There are no new unread posts for this topic. tranny shifts hard after fluid/filter change

Flaggship

4

500

Tue Sep 29, 2009 11:49 pm

1fatcat View the latest post

There are no new unread posts for this topic. Transmission Fluid

bsan63

7

844

Sat Aug 06, 2011 12:05 pm

LeSabreUltra View the latest post

There are no new unread posts for this topic. transmission fluid

xvr843

12

840

Tue Nov 08, 2011 8:09 pm

00Beast View the latest post

There are no new unread posts for this topic. transmission fluid

xvr843

11

768

Tue Jan 17, 2012 3:35 pm

spoiledred94 View the latest post

 


Who is online

Users browsing this forum: Google [Bot] and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group


phpBB SEO