Oil talk
Thread Starter
Advanced
Joined: May 2015
Posts: 53
Likes: 4
From: Montreal
Oil talk
Hey guys,
For a 1995 LT1 manual coupe, what is the grade and weight of:
Differential oil
ZF 6 Speed trans
Any upgrades from stock you might suggest?
Thanks!
For a 1995 LT1 manual coupe, what is the grade and weight of:
Differential oil
ZF 6 Speed trans
Any upgrades from stock you might suggest?
Thanks!
Last edited by Blue Cheese; Dec 11, 2015 at 07:42 PM.
Melting Slicks
Joined: Oct 2007
Posts: 2,310
Likes: 9
From: KB7TIF Ville NV
Drifting
Joined: Mar 2012
Posts: 1,492
Likes: 61
From: New Jersey
Don't apologize! Sometimes using the search function can be an exercise in frustration. Here are links to a couple of more recent threads regarding the ZF6 trans that may be of help to you -
https://www.corvetteforum.com/forums...-zf-trans.html
https://www.corvetteforum.com/forums...f6-issues.html
As for the rear gear oil, 75W-90, can be used and most of the aftermarket manufacturers make this grade in conventional and synthetic. Don't forget to add a bottle of posi additive.
If you want to use factory recommended fluids, here's a link to AC Delco site where you can input your make, model and year to see recommended oils -
http://chem.rjconlin.net/basepg.php?...=ACD&sOflt=TOS
https://www.corvetteforum.com/forums...-zf-trans.html
https://www.corvetteforum.com/forums...f6-issues.html
As for the rear gear oil, 75W-90, can be used and most of the aftermarket manufacturers make this grade in conventional and synthetic. Don't forget to add a bottle of posi additive.
If you want to use factory recommended fluids, here's a link to AC Delco site where you can input your make, model and year to see recommended oils -
http://chem.rjconlin.net/basepg.php?...=ACD&sOflt=TOS
Race Director
Joined: Oct 2005
Posts: 11,772
Likes: 177
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
Don't apologize! Sometimes using the search function can be an exercise in frustration. Here are links to a couple of more recent threads regarding the ZF6 trans that may be of help to you -
https://www.corvetteforum.com/forums...-zf-trans.html
https://www.corvetteforum.com/forums...f6-issues.html
As for the rear gear oil, 75W-90, can be used and most of the aftermarket manufacturers make this grade in conventional and synthetic. Don't forget to add a bottle of posi additive.
If you want to use factory recommended fluids, here's a link to AC Delco site where you can input your make, model and year to see recommended oils -
http://chem.rjconlin.net/basepg.php?...=ACD&sOflt=TOS
https://www.corvetteforum.com/forums...-zf-trans.html
https://www.corvetteforum.com/forums...f6-issues.html
As for the rear gear oil, 75W-90, can be used and most of the aftermarket manufacturers make this grade in conventional and synthetic. Don't forget to add a bottle of posi additive.
If you want to use factory recommended fluids, here's a link to AC Delco site where you can input your make, model and year to see recommended oils -
http://chem.rjconlin.net/basepg.php?...=ACD&sOflt=TOS
It can be frustrating though, until you get used to it.
https://www.corvetteforum.com/forums...eed-trans.html
https://www.corvetteforum.com/forums...ans-fluid.html
https://www.corvetteforum.com/forums...bmw-fluid.html
https://www.corvetteforum.com/forums...ion-fluid.html
https://www.corvetteforum.com/forums...best-lube.html
https://www.corvetteforum.com/forums...d-choices.html
https://www.corvetteforum.com/forums...id-change.html
I am using this in my ZF6 transmission:
http://www.amsoil.com/shop/by-produc...ont%2fmtf.aspx
Thread Starter
Advanced
Joined: May 2015
Posts: 53
Likes: 4
From: Montreal
Hey guys, I just called my chevy dealer and asked if he had posi additive. He said to use it only if I ran mineral oïl. Don't need it if I run Synthetic. What is the story on this?
What are you gurus saying on that?
What are you gurus saying on that?
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Melting Slicks
Joined: Jul 2011
Posts: 2,605
Likes: 202
From: Trinity FL
Shoot Brad an email:
http://www.c66racing-synthetics.com/Contactus.htm
Order a couple quarts of this:
https://www.amsoil.com/shop/by-produ...ont%2fsvg.aspx
It already has the friction modifiers in it. Good to go!
As for the ZF6, I have been running Amsoil in mine for the last 30k miles with nothing bad to say about it. I am going to try Pennzoil synchromesh this time around since it is available locally and a lot less money. I have heard good things about it as well. My plan is to change the ZF oil once a year at the same time I do my engine oil.
http://www.c66racing-synthetics.com/Contactus.htm
Order a couple quarts of this:
https://www.amsoil.com/shop/by-produ...ont%2fsvg.aspx
It already has the friction modifiers in it. Good to go!
As for the ZF6, I have been running Amsoil in mine for the last 30k miles with nothing bad to say about it. I am going to try Pennzoil synchromesh this time around since it is available locally and a lot less money. I have heard good things about it as well. My plan is to change the ZF oil once a year at the same time I do my engine oil.
Last edited by TorchTarga94; Dec 17, 2015 at 01:18 PM.
Thread Starter
Advanced
Joined: May 2015
Posts: 53
Likes: 4
From: Montreal
Thanks Torch! I found a couple of local amsoil dealers locally. Will give this stuff a go as well as for the Amsoil syncromesh 5W30 stuff.
So NO posi additive with the Amsoil severe duty??? You sure? LOL
This sounds like a cheap insurance Policy... http://www.amsoil.com/shop/by-produc...?code=ADATB-EA eventghough they write that Amsoil synth lube doesn't require it, it says it will do away with chatter on sound diffs. And mine being 20 years Young.... your thoughts?
So NO posi additive with the Amsoil severe duty??? You sure? LOL
This sounds like a cheap insurance Policy... http://www.amsoil.com/shop/by-produc...?code=ADATB-EA eventghough they write that Amsoil synth lube doesn't require it, it says it will do away with chatter on sound diffs. And mine being 20 years Young.... your thoughts?
Last edited by Blue Cheese; Dec 17, 2015 at 02:19 PM.
Thread Starter
Advanced
Joined: May 2015
Posts: 53
Likes: 4
From: Montreal
Thanks man. That's the kind of hands on experience that inpires! Sold!
I've been driving on race tracks for over 20 yrs and I know some stuff, but Corvettes seem to have a particular thing about them from what I've discovered so far. I come from the dark side of the force and German wheels.... don't hold it agains me! LOL
Thanks again guys.
I've been driving on race tracks for over 20 yrs and I know some stuff, but Corvettes seem to have a particular thing about them from what I've discovered so far. I come from the dark side of the force and German wheels.... don't hold it agains me! LOL
Thanks again guys.