Mixed trannny fluids..any harm? - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 5 (permalink) Old 02-05-2013, 07:49 AM Thread Starter
3rd Gear Poster
 
30thAnniversaryCat's Avatar
 
Join Date: Jun 2009
Location: Austin, Texas
Posts: 176
Mixed trannny fluids..any harm?

I damaged the tranny fluid cooler on my '97 4.6L over the weekend...hit a stump. A neighbor offered to look at it and found no damage other than the cooler and a bad leak from it. He replaced it for me at his shop, but replaced the leaked-out fluid with Mercon V (about 4 quarts). Will that cause damage to the transmission...the fluid in there was at least 7-8 years old and probably wasn't Mercon V, but I'm not sure of that. Do I have to now flush and replace all the fluid or can I drive it with this mixture without worry. Car has about 92K miles and no tranny problems before this.
30thAnniversaryCat is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 02-05-2013, 07:57 AM
Seasoned PostWhore
 
dDUBb's Avatar
 
Join Date: Dec 2006
Location: Nor-Cal
Age: 38
Posts: 4,124
Garage
You should be using Mercon V fluid anyways. No reason to worry about mixing fluids, its as if you did a filter change and replaced the drained fluid with the correct fluid. If you did any damage it was from hitting the stump or neglecting to change the 7-8 year old fluid.
dDUBb is offline  
post #3 of 5 (permalink) Old 02-05-2013, 08:01 AM Thread Starter
3rd Gear Poster
 
30thAnniversaryCat's Avatar
 
Join Date: Jun 2009
Location: Austin, Texas
Posts: 176
Quote:
Originally Posted by SCTbird1994 View Post
You should be using Mercon V fluid anyways. No reason to worry about mixing fluids, its as if you did a filter change and replaced the drained fluid with the correct fluid.
So I'm OK driving it and can wait to do a flush and Mercon V refill sometime later?
30thAnniversaryCat is offline  
Sponsored Links
Advertisement
 
post #4 of 5 (permalink) Old 02-05-2013, 08:15 AM
Seasoned PostWhore
 
dDUBb's Avatar
 
Join Date: Dec 2006
Location: Nor-Cal
Age: 38
Posts: 4,124
Garage
Quote:
Originally Posted by 30thAnniversaryCat View Post
So I'm OK driving it and can wait to do a flush and Mercon V refill sometime later?
You should be fine.
dDUBb is offline  
post #5 of 5 (permalink) Old 02-05-2013, 11:10 AM Thread Starter
3rd Gear Poster
 
30thAnniversaryCat's Avatar
 
Join Date: Jun 2009
Location: Austin, Texas
Posts: 176
Quote:
Originally Posted by SCTbird1994 View Post
You should be fine.
Thanks
30thAnniversaryCat is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome