DCT fluid
Le Mans Master
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From: One Hour From Boston!
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Team Owner
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St. Jude Donor '06-'07-'08,'12-'13
Thanks !
Pro
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Full fluid change is 45,000 miles. Track use will shorten fluid drain intervals.
Last edited by Newdude; May 23, 2020 at 03:04 PM.
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Race Director
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remove the rear trunk stuff there is a good video showing for installing new exh or nitrous kit that show them removing the parts
It's a ME and yes service will be tougher than just lifting the hood.
takes 10 min Not bad at all.
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Are you considering the airbox removal trunk stuff?
E-Ray, 3LZ, ZER, LIFT
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From: NE South Carolina
Just a "guess."
Le Mans Master
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Perhaps the viscous friction of the added fluid hurts fuel economy during EPA certification? Just a wild guess, but not an unreasonable one.
E-Ray, 3LZ, ZER, LIFT
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From: NE South Carolina
^^^
Yep, they don't want the DCT fluid overcooled, no doubt to control viscosity, but don't say why.
Quoting info re the Z51 extra rear Rad:
Two front radiators send cold coolant rearward toward the engine bay, the fluid tees off to cool three main components: the engine itself, the transmission’s oil-to-coolant stack heat exchanger.
The Z51 package has a dedicated heat exchanger behind the passenger’s side large side vent. There’s a separate dedicate coolant loop on the Z51 that runs through the third rear radiator with a dedicated airflow path and a dedicated cooling fan. That adds bulk cooling, but it also cools the coolant that’s running into the trans oil liquid-to-liquid heat exchanger.
This extra heat exchanger further cools the liquid coming from the radiators up front, and then sends that extra cold coolant to the transmission. It’s just like an addition to the front two radiators in terms of its total capacity. It’s cooler coolant coming out of that rear heat exchanger runs directly to the trans cooler stack heat exchanger.
It’s a really effective way of getting good capacity and also not overcooling in cold weather.
(Assume managed with a temp controlled valve etc)
Yep, they don't want the DCT fluid overcooled, no doubt to control viscosity, but don't say why.
Quoting info re the Z51 extra rear Rad:
Two front radiators send cold coolant rearward toward the engine bay, the fluid tees off to cool three main components: the engine itself, the transmission’s oil-to-coolant stack heat exchanger.
The Z51 package has a dedicated heat exchanger behind the passenger’s side large side vent. There’s a separate dedicate coolant loop on the Z51 that runs through the third rear radiator with a dedicated airflow path and a dedicated cooling fan. That adds bulk cooling, but it also cools the coolant that’s running into the trans oil liquid-to-liquid heat exchanger.
This extra heat exchanger further cools the liquid coming from the radiators up front, and then sends that extra cold coolant to the transmission. It’s just like an addition to the front two radiators in terms of its total capacity. It’s cooler coolant coming out of that rear heat exchanger runs directly to the trans cooler stack heat exchanger.
It’s a really effective way of getting good capacity and also not overcooling in cold weather.
(Assume managed with a temp controlled valve etc)
Last edited by JerryU; Jun 8, 2020 at 10:20 AM.
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You only have to do the track fill if you're going to track it hard. If you don't do the track overfill you service the fluid from the driver side fill port which is accessible without removing the trunk panel and air intake.
