Convertible Vehicles Enthusiasts | Information | Maintenance

What's the easiest way to change out your vert top fluid?

Thread Tools
 
Search this Thread
 
Old Sep 6, 2009 | 02:57 AM
  #1  
fastmatt98's Avatar
Thread Starter
TECH Fanatic
iTrader: (27)
 
Joined: Mar 2002
Posts: 1,167
Likes: 0
From: Huntersville, NC near Charlotte
Default What's the easiest way to change out your vert top fluid?

I hear the mineral oil is better so I'm thinking about switching to it just wanna know what the easiest way to get all the stock stuff out.

Last edited by fastmatt98; Sep 6, 2009 at 11:18 PM.
Reply
Old Sep 7, 2009 | 02:18 PM
  #2  
Devils Mentor's Avatar
Banned
iTrader: (20)
 
Joined: Apr 2009
Posts: 1,120
Likes: 0
From: Inside Your Girlfriend
Default

our tops are run on hydraulics? I thought they were electric motors.


DMI
Reply
Old Sep 7, 2009 | 04:54 PM
  #3  
Johnny-LT1-runner's Avatar
Rockstar
iTrader: (15)
 
Joined: Feb 2009
Posts: 1,582
Likes: 0
From: I'm on a boat! in Shreveport, La
Default

Yeah, they're Hydraulic and GM put out a notice a while back that Mineral Oil is the preferred fluid for our tops. Hell, even baby oil would work.
Reply
Old Sep 8, 2009 | 01:04 AM
  #4  
BobDoLe's Avatar
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (11)
 
Joined: Jul 2006
Posts: 1,516
Likes: 3
Default

how is it better? would it make the top go up/down quicker?
Reply
Old Sep 8, 2009 | 01:23 AM
  #5  
Johnny-LT1-runner's Avatar
Rockstar
iTrader: (15)
 
Joined: Feb 2009
Posts: 1,582
Likes: 0
From: I'm on a boat! in Shreveport, La
Default

I remember reading something about Mineral Oil being better because it doesn't gunk up the hydraulics like the industrial fluid that auto part stores sell.
OP, there's really no need to change it, but you have to vacuum it because there's no drain plug if you do. Most systems leak slowly over time so you'll have to continually add new fluid.
Reply
Old Sep 8, 2009 | 09:06 AM
  #6  
JohnnyBs98WS6Rag's Avatar
TECH Addict
Photogenic
Shutterbug
Liked
Community Favorite
iTrader: (1)
 
Joined: Jul 2005
Posts: 2,493
Likes: 366
From: NE Indiana
Default

You are correct, GM, at least some dealerships did at one time, recommended mineral oil. However the only official GM notice I've been able to find posted says:

Subject: Service VME - Convertible Top Hydraulic Fluid #PI00386 - (08/14/2002)



Models: .




--------------------------------------------------------------------------------

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

SERVICE VME
This is a service VME to all Chevrolet and Pontiac dealerships regarding 1994 through 2002 Camaro and Firebird convertible top hydraulic fluid. This is Art Spong, Brand Quality Manager for the F-cars. The service manual and ESI incorrectly advise to use DEXRON® III automatic transmission fluid for the hydraulic fluid in the convertible top system. The proper fluid is a ten-weight SAE oil. A bulletin will be issued and ESI will also be corrected. Thanks
I still use mineral oil w/ no problems.

Probably the best way to drain it would be do disconnect one of the pressure-side lines, connect a temporary line and pump-out all the old stuff into a container. Then manually cycle the top up and down to push most of the old oil out of the cylinders. Then reconnect the lines, refill w/ the new stuff, cycle and add fluid until all air is purged and fluid level is proper. Even then, I wouldn't expect you would be able to get 100% of the old stuff out unless you removed the cylinders and fluid lines and puged them all individually.

If anyone has a copy of the GM notice recommending mineral oil, I'd like to see it.
Reply
Old Sep 8, 2009 | 11:01 AM
  #7  
98Bird's Avatar
On The Tree
 
Joined: Feb 2006
Posts: 110
Likes: 0
Default

What is mineral oil and where do you get it?

What name brand please. Thank you.
Reply
Old Sep 8, 2009 | 11:36 AM
  #8  
Johnny-LT1-runner's Avatar
Rockstar
iTrader: (15)
 
Joined: Feb 2009
Posts: 1,582
Likes: 0
From: I'm on a boat! in Shreveport, La
Default

Originally Posted by 98Bird
What is mineral oil and where do you get it?

What name brand please. Thank you.
Mineral oil is just what the name implies. Baby oil is also the same thing. Brand isn't important, it's not like kobe beef lol.
Hit up walmart or the dollar store, pick up a couple bottles for 5 bucks, and you're set.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Sep 8, 2009 | 02:14 PM
  #9  
98Bird's Avatar
On The Tree
 
Joined: Feb 2006
Posts: 110
Likes: 0
Default

Originally Posted by Johnny-LT1-runner
Mineral oil is just what the name implies. Baby oil is also the same thing. Brand isn't important, it's not like kobe beef lol.
Hit up walmart or the dollar store, pick up a couple bottles for 5 bucks, and you're set.
Thanks. Last question, so I can mix mineral oil in with whatever that's in my convertible pumps now? I assume it's filled with what came stock on my car.
Reply
Old Sep 8, 2009 | 02:39 PM
  #10  
Johnny-LT1-runner's Avatar
Rockstar
iTrader: (15)
 
Joined: Feb 2009
Posts: 1,582
Likes: 0
From: I'm on a boat! in Shreveport, La
Default

Well I have mixed it before, but I don't know how that may affect it.
Most casual owners would not even think about if it was hydraulic or electric in the first place, so based on the condition of your car when you bought it you should have a good idea of what's in there now.
Reply
Old Sep 9, 2009 | 11:39 AM
  #11  
JohnnyBs98WS6Rag's Avatar
TECH Addict
Photogenic
Shutterbug
Liked
Community Favorite
iTrader: (1)
 
Joined: Jul 2005
Posts: 2,493
Likes: 366
From: NE Indiana
Default

Originally Posted by Johnny-LT1-runner
Mineral oil is just what the name implies. Baby oil is also the same thing. Brand isn't important, it's not like kobe beef lol.
Hit up walmart or the dollar store, pick up a couple bottles for 5 bucks, and you're set.
Eh, baby oil is alot thinner than mineral oil. I found mineral oil in the "Pharmacy" section, it's with the laxatives. Pretty cheap. I believe it'll mix just fine w/ whatever is in there now.
Reply
Old Oct 12, 2009 | 07:11 PM
  #12  
02SOMWS6's Avatar
10 Second Club
iTrader: (6)
 
Joined: Nov 2003
Posts: 2,638
Likes: 2
From: Wallkill ,NY
Default

can someone post some step by step instructions on how to change this or post a link. Thanks
Reply
Old Oct 13, 2009 | 07:51 PM
  #13  
t/afrom504's Avatar
On The Tree
 
Joined: Jun 2008
Posts: 183
Likes: 0
From: new orleans to houston
Default

All I did was unscrew the base of the pump, and dumped it out in a cup since I still had the cables connected. Then carefully refilled it back up.
Reply




All times are GMT -5. The time now is 05:36 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE