Notices
GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

New guy. Trans. Fluid question. Please help!

Thread Tools
 
Search this Thread
 
Old Feb 13, 2013 | 07:54 PM
  #1  
85Krtagena's Avatar
85Krtagena
Thread Starter
Driver School Candidate
10 Year Member
 
Joined: Jun 2012
Posts: 44
Likes: 0
From: fl
Default New guy. Trans. Fluid question. Please help!

Hello to all. I just bought a 98 gs4 with 113k miles. (will post pics later) The previous owner changed the trans. Fluid with some other brand instead of Toyota type IV fluid. The car shifts fine. However, I know that only Toyota type IV fluid should be in there. I used to own a 96 ls400 and I know from the LS forum that only 2 quarts of fluid have to be pour into the trans. After a drain and fill. So here is my question:

How many quarts of Toyota type IV fluid should I put in the transmission of my 98 gs400 after a drain and fill? 2 quarts? 3 quarts?

Thanks
Reply
Old Feb 13, 2013 | 08:54 PM
  #2  
sam12345's Avatar
sam12345
Lexus Champion
iTrader: (1)
 
Joined: Nov 2009
Posts: 2,037
Likes: 9
From: tx
Default

Till its on the full mark when the car is hot. By the way, you need to drain through the cooling line to get rid of the old tranny fluid and to do it right you need aroun 10 quarts.

http://www.lexls.com/tutorials/trans...ransflush.html

Last edited by sam12345; Feb 13, 2013 at 09:04 PM.
Reply
Old Feb 13, 2013 | 09:39 PM
  #3  
chicov8's Avatar
chicov8
Lead Lap
 
Joined: Dec 2010
Posts: 623
Likes: 1
From: il
Default

drain and fill is only 2 quarts
Reply
Old Feb 14, 2013 | 12:50 AM
  #4  
raytseng's Avatar
raytseng
Instructor
 
Joined: Dec 2002
Posts: 1,043
Likes: 31
From: CA
Default

it's about 2, but this depends on how much you got out during the drain.

Put in about 1.75 bottles, then properly measure on the dipstick following the instructions from the manual (hot and engine on after shifting through the gears). 2nd time around, you'll get a closer number.

As you notice, 1) the full amount is around 10qts,
2) the fluid level goes up and down depending on temp.
if you're off by a bit, don't panic the car isn't going to blow up.

You don't need to go through the trouble of doing a 10qt flush if the car is otherwise operating properly. If you are paranoid, just do a D/F every oil change until you get through a case of fluid.
Reply
Old Feb 14, 2013 | 05:06 AM
  #5  
SaiyanGS3's Avatar
SaiyanGS3
Racer
15 Year Member
Liked
Loved
iTrader: (8)
 
Joined: May 2011
Posts: 1,697
Likes: 114
From: H-town, TX
Default

How are you guys only getting two??? Maybe it's because I have a 300, but I get a constant 3 qts. I drive my car up on the ramps so more can drain out. To OP, this is the best way to do it without using the full mark. I never used that. Get you two identical clear jugs....ex. milk jugs. Drain the fluid, then transfer the old fluid that just drained out and pour it into one of the jugs. Make sure that you don't spill any of it. Once you have the old fluid measure in one jug, then pour the new fluid into the other clear jug and STOP when it measured in the same exact spot as the old fluid. This way you are putting in EXACTLY what came out. I have been doing this for years with all of my cars and I won't do it any other way.
Reply
Old Feb 14, 2013 | 12:44 PM
  #6  
raytseng's Avatar
raytseng
Instructor
 
Joined: Dec 2002
Posts: 1,043
Likes: 31
From: CA
Default

The fluid change in the manual says 1.8 or 1.9 if I recall; so if you're getting 3qts you're the special one.

If can be you are overfull by 1quart for the "years you've been doing this this way" if you never verified with the dipstick.
If the dipstick is good, then maybe you've got a superior draining technique, or just something funky with your pan that allows the extra quart to flow out.

Either way, If car is working properly, I don't think it's a huge deal.
Reply
Old Feb 14, 2013 | 01:02 PM
  #7  
repugnante's Avatar
repugnante
Instructor
10 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2011
Posts: 1,013
Likes: 35
From: CA
Default

2.5 quarts...drain and refill. Same tranny for the 300 and the 400/430
Reply
Old Feb 14, 2013 | 07:50 PM
  #8  
85Krtagena's Avatar
85Krtagena
Thread Starter
Driver School Candidate
10 Year Member
 
Joined: Jun 2012
Posts: 44
Likes: 0
From: fl
Default

So wait, which one is it?

1.75 quarts?
2 quarts?
2.5 quarts?
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

10 Lexus Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-1

8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

 Michael S. Palmer
story-2

10 Best Lexus Models No One Remembers

 Joe Kucinski
story-3

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-4

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-5

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-6

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-7

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-8

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-9

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
Old Feb 14, 2013 | 08:13 PM
  #9  
raytseng's Avatar
raytseng
Instructor
 
Joined: Dec 2002
Posts: 1,043
Likes: 31
From: CA
Default

Originally Posted by 85Krtagena
So wait, which one is it?

1.75 quarts?
2 quarts?
2.5 quarts?
I just checked. Manual says Drain and refill takes 2.0 quarts (p232 people), but it depends how much you drained out. That's why I said start at 1.75 and then check the dipstick.

Once you do the procedure once, you'll have a better idea how much your particular drain technique drains out, and how much you have to refill.

Service manual also says a similar thing. You're supposed to get the fluid somewhere in Cold Range. But then do a final adjustment with a Hot Measurement.

This means with engine running at operating temp (go for a drive), and then shift through the gears back to park, then check that the fluid is in the Hot Range

Last edited by raytseng; Feb 14, 2013 at 08:17 PM.
Reply
Old Feb 15, 2013 | 04:42 AM
  #10  
SaiyanGS3's Avatar
SaiyanGS3
Racer
15 Year Member
Liked
Loved
iTrader: (8)
 
Joined: May 2011
Posts: 1,697
Likes: 114
From: H-town, TX
Default

Originally Posted by raytseng
The fluid change in the manual says 1.8 or 1.9 if I recall; so if you're getting 3qts you're the special one.

If can be you are overfull by 1quart for the "years you've been doing this this way" if you never verified with the dipstick.
If the dipstick is good, then maybe you've got a superior draining technique, or just something funky with your pan that allows the extra quart to flow out.

Either way, If car is working properly, I don't think it's a huge deal.
I don't care what the manual says lol. The manual states to change your oil every 3750 miles. Who follows that lol?? Yep, I get a constant 3qts every time I do this. I have the old school yellow iron ramps that has a steep 45 degree angle. No luck or I'm special lol...it's just common knowledge that you will be able to drain more with your car being on a steep incline vs. draining the car level or slightly raised. That would suck only being able to get 1.75 or 2 qts out like some of you are stating.

I will check my stick once I get off today to see where it's at. No problems with my tranny at all.
Reply
Old Feb 15, 2013 | 04:44 AM
  #11  
SaiyanGS3's Avatar
SaiyanGS3
Racer
15 Year Member
Liked
Loved
iTrader: (8)
 
Joined: May 2011
Posts: 1,697
Likes: 114
From: H-town, TX
Default

Originally Posted by 85Krtagena
So wait, which one is it?

1.75 quarts?
2 quarts?
2.5 quarts?
Dude, it's not that serious or difficult. Just buy 3 qts, and take back the extra qt if you don't use it. End of discussion.
Reply
Old Feb 15, 2013 | 07:13 AM
  #12  
FrankT's Avatar
FrankT
Instructor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2005
Posts: 1,001
Likes: 51
From: Mountainair, NM
Default

Originally Posted by GokuSSJ3
How are you guys only getting two??? Maybe it's because I have a 300, but I get a constant 3 qts. I drive my car up on the ramps so more can drain out. To OP, this is the best way to do it without using the full mark. I never used that. Get you two identical clear jugs....ex. milk jugs. Drain the fluid, then transfer the old fluid that just drained out and pour it into one of the jugs. Make sure that you don't spill any of it. Once you have the old fluid measure in one jug, then pour the new fluid into the other clear jug and STOP when it measured in the same exact spot as the old fluid. This way you are putting in EXACTLY what came out. I have been doing this for years with all of my cars and I won't do it any other way.
X2
Except instead of ramps I jack it up on the drivers side and drain. I measure what comes out and replace with Castrol Import Multi-Vehicle ATF. About 3 quarts.
Reply
Old Feb 15, 2013 | 08:25 AM
  #13  
SaiyanGS3's Avatar
SaiyanGS3
Racer
15 Year Member
Liked
Loved
iTrader: (8)
 
Joined: May 2011
Posts: 1,697
Likes: 114
From: H-town, TX
Default

Originally Posted by FrankT
X2
Except instead of ramps I jack it up on the drivers side and drain. I measure what comes out and replace with Castrol Import Multi-Vehicle ATF. About 3 quarts.
This is another way also. I knew that I couldn't be the only one who was getting 3 qts. Those iron ramps are a beast! I've had those things since I was 18 and now I'm 31. I've have people offer to buy them because they are waaaay better than the cheap composite/plastic ramps they sell now that slides everywhere.

I think the way we do it is by far the easiest way to do this job.
Reply
Old Feb 15, 2013 | 11:14 AM
  #14  
raytseng's Avatar
raytseng
Instructor
 
Joined: Dec 2002
Posts: 1,043
Likes: 31
From: CA
Default

Originally Posted by GokuSSJ3
I don't care what the manual says lol. .
Take a chill pill dude. I'm not going to be the maintenance police and come to your house to nag at you that you're doing it wrong. Do whatever you want, I even said your car is going to be fine and isn't going to be that precise..

My only issue is that if you're giving advice to an OP who is a n00b that has a question, you should give the most correct advice possible to what he's going to do. Which is why the manual and the service procedures matters. Don't make it seem like your opinion somehow counts more than the manual.
That's like saying i don't care what scientists say, the earth is flat. And then since there are 2 sides to the argument, both sides has an equal 50% chance to be right

As far as the "easiest" way to perform a fluid exchange, I will 1-up you in that I use a fluid extractor and don't even need to set up the ramps or need to unbolt a plug.

Last edited by raytseng; Feb 15, 2013 at 05:35 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Michael
LS - 1st and 2nd Gen (1990-2000)
13
Nov 24, 2013 08:59 PM
cgonzalez
Performance
3
Jul 6, 2011 08:23 PM
lexondubs
LS - 1st and 2nd Gen (1990-2000)
25
Jan 31, 2010 12:27 AM
owali
Performance
3
Jan 15, 2006 10:53 PM
HotBoy
Maintenance
4
Dec 30, 2003 09:09 PM




All times are GMT -7. The time now is 12:53 AM.

story-0
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-1
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-2
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-3
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-4
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-5
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-6
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-7
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-8
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-9
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE