Transaxle Oil?
#1
Rennlist Member
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
What are the transaxle oil requirements/specs for the GT4? I searched and could not find any for the 718. Since the car had new specs for motor oil (C40), I wanted to check here first. Are there any aftermarket ones that comply - Motul, Liqui Moly, Redline, Amsoil, etc? What is the capacity? Attached a pic below from Dominion Raceway for your time. Thanks in advance. ![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
![](https://live.staticflickr.com/65535/51538929807_91d1c84ca2_c.jpg)
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
![](https://live.staticflickr.com/65535/51538929807_91d1c84ca2_c.jpg)
#3
Rennlist Member
Thread Starter
#5
Rennlist Member
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
My indy Porsche shop recommended Redline 75w90 NS. I've had mixed results with Redline (one good/one bad) with my previous cars. I was a little hesitant.
Well, it has been 6 months since they used Redline and so far it took care of the 1-2 issue I was having. Current mileage is at 5800.
Well, it has been 6 months since they used Redline and so far it took care of the 1-2 issue I was having. Current mileage is at 5800.
#6
Rennlist Member
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,533
Likes: 0
Received 3,458 Likes
on
2,361 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
My indy Porsche shop recommended Redline 75w90 NS. I've had mixed results with Redline (one good/one bad) with my previous cars. I was a little hesitant.
Well, it has been 6 months since they used Redline and so far it took care of the 1-2 issue I was having. Current mileage is at 5800.
Well, it has been 6 months since they used Redline and so far it took care of the 1-2 issue I was having. Current mileage is at 5800.
#7
Rennlist Member
Thread Starter
Trending Topics
#8
Rennlist Member
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,533
Likes: 0
Received 3,458 Likes
on
2,361 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I assume you read the thread, and have seen the latest one? https://rennlist.com/forums/718-gts-...l#post18101078
Someone else said they tried it and it did not help.
Someone else said they tried it and it did not help.
#9
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Porsche hasn’t made a vehicle with a transaxle in a long time! The 944/924/968/928 were the transaxle cars.
#10
Rennlist Member
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I assume you read the thread, and have seen the latest one? https://rennlist.com/forums/718-gts-...l#post18101078
Someone else said they tried it and it did not help.
Someone else said they tried it and it did not help.
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
#11
Addict
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I think the definition of a transaxle is a single unit with the transmission and differential (axle) combined into a single housing (all of the Porsche models above have this). For contrast, a car like a traditional BMW has a transmission bolted to its front engine which then sends the geared power through a driveshaft to a separate differential housing on the rear axle.
The front-engined Porsche transaxle cars send the un-geared power (it spins with the same rpm as the engine) from the engine through a torque tube to the transaxle between the rear wheels (where it goes through both the gears and differential in one). Rear and rear-mid engined Porsches do the same, but no torque tube is required because the engine and transaxle are bolted together and it's not necessary.
Front wheel drive cars also use a transaxle (engine bolted to a transaxle between the front wheels and it's usually transversely mounted). 911/Boxster/Cayman have a similar setup, but it's at the other end of the car (engine longitudinally mounted behind the transaxle in a 911 and engine in front of the transaxle in a Boxster/Cayman)...
Last edited by GrantG; 04-22-2022 at 11:19 AM.