Manual tranny fluid change
#1
Melting Slicks
Thread Starter
Manual tranny fluid change
I just drained my manual transmission fluid. Refill only took 3.6 quarts. Manual says 4.23. Is this another misprint in the manual??
#2
Melting Slicks
Was the car level on jack stands or a lift? If it was on ramps with just one end lifted, that could explain the difference.
#3
Pro
Trans fluid
I suspect that some of the old fluid remained in the transmission cooler and its associated lines. The 4.23 number is probably for a new dry system with no residual fluid.
#4
Melting Slicks
Thread Starter
Thanks!
#6
Melting Slicks
Just did mine and probably got 3.75 qts back in. Seems like it drains incompletely. I did fill a few ounces more after idling the engine in neutral 2 minutes and then rechecking as the service manual says to do.
#7
Pro
Just thought I would add my thoughts since I did my M7 fluid change on my 19 yesterday. Drained it cold, got about 3 quarts out. 3.5 quarts went in before it started coming out the fill hole. It appears to have been under filled.
I read on here everywhere that it should take just shy of 4 quarts. I figured mine took less because I drained it cold, like 30* middle of winter cold. For peace of mind I went to Tremec's website, it states the 6070's capacity is approximately 3.5L or 3.7 quarts.
I read on here everywhere that it should take just shy of 4 quarts. I figured mine took less because I drained it cold, like 30* middle of winter cold. For peace of mind I went to Tremec's website, it states the 6070's capacity is approximately 3.5L or 3.7 quarts.
#8
Sr.Random input generator
Unlike how it worked with C6 cars, when I filled to the level check hole, I ended up having slow leaks. I thought I've had some other issue, until two other friends also replaced their fluid, and started having the same leaks. I asked dealer's help. They colored the fluid, and found the leak coming from the breather. They suggested I actually need to fill about half inch below the fill line, or else it ends up leaking from the breather at the top of the transmission.
I'm not absolutely sure if the dealer is right, but sucking fluid out has definitely helped slow down the leaks. I have since switched to a '19 Z06. I'll see what happens when I change the fluid on this car, too.
I'm not absolutely sure if the dealer is right, but sucking fluid out has definitely helped slow down the leaks. I have since switched to a '19 Z06. I'll see what happens when I change the fluid on this car, too.
#9
Burning Brakes
When I changed mine I had the same results as you. I used a QuickJack and the car was perfectly level. I tried to find the post but couldn't, where some said that that was normal.
Last edited by George_L; 02-09-2019 at 07:14 PM.
#10
Pro
#11
Pro
Unlike how it worked with C6 cars, when I filled to the level check hole, I ended up having slow leaks. I thought I've had some other issue, until two other friends also replaced their fluid, and started having the same leaks. I asked dealer's help. They colored the fluid, and found the leak coming from the breather. They suggested I actually need to fill about half inch below the fill line, or else it ends up leaking from the breather at the top of the transmission.
I'm not absolutely sure if the dealer is right, but sucking fluid out has definitely helped slow down the leaks. I have since switched to a '19 Z06. I'll see what happens when I change the fluid on this car, too.
I'm not absolutely sure if the dealer is right, but sucking fluid out has definitely helped slow down the leaks. I have since switched to a '19 Z06. I'll see what happens when I change the fluid on this car, too.
I'll keep this in mind if I start getting ATF on my garage floor. I filled mine so it was just dripping out of the fill hole.
#12
Sr.Random input generator
There's a tracing fluid you can add to trace where the leaks are coming from. It shows up under blue light, and doesn't change the color of the fluid.
#13
Race Director
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I always run compressed air into the drain holes, pushes some more fluid out, I can’t remember exactly but think I got in near capacity.
#14
Safety Car
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Unlike how it worked with C6 cars, when I filled to the level check hole, I ended up having slow leaks. I thought I've had some other issue, until two other friends also replaced their fluid, and started having the same leaks. I asked dealer's help. They colored the fluid, and found the leak coming from the breather. They suggested I actually need to fill about half inch below the fill line, or else it ends up leaking from the breather at the top of the transmission.
I'm not absolutely sure if the dealer is right, but sucking fluid out has definitely helped slow down the leaks. I have since switched to a '19 Z06. I'll see what happens when I change the fluid on this car, too.
I'm not absolutely sure if the dealer is right, but sucking fluid out has definitely helped slow down the leaks. I have since switched to a '19 Z06. I'll see what happens when I change the fluid on this car, too.
#15
Redline D4 ATF makes the cold shifting easier but still not magic. Take your time until the gearbox heats up. I often do 1 to 3 until I get some fluid temp (trick learned from owning old Ferraris with crappy 2nd gear syncros).
Redline specifically states D4 ATF as the application for our gearbox. FWIW, the Ranger method is for clutch fluid not gearbox fluid. The gearbox has a drain plug and a fill plug. Always make sure you can get the fill plug out before you drain. If you have drained and can not get the fill plug out, it would be a big oh sh-t moment
Redline specifically states D4 ATF as the application for our gearbox. FWIW, the Ranger method is for clutch fluid not gearbox fluid. The gearbox has a drain plug and a fill plug. Always make sure you can get the fill plug out before you drain. If you have drained and can not get the fill plug out, it would be a big oh sh-t moment
#16
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Z0HS1CK (02-13-2019)
#18
Burning Brakes
I often use my QuickJack on asphalt. When it is warm (also, my driveway was paved last summer) I use two pieces of 1/2" plywood under the QuickJack. I just cut a sheet of 1/2" plywood in half lengthwise. I have never had a problem. I know people that even use them on stone and dirt driveways. The biggest thing to keep in mind is that the surface needs to be almost level.
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Z0HS1CK (02-13-2019)
#19
Burning Brakes
Quick question. Has anyone noticed that the 2019 Z06 M7 is prone to popping out of gear when the car starts out on a cold (< 30F) day? If so, does any particular fluid help to solve that issue, or is it just a design flaw? Or just my car, and I should visit the dealer?
Thanks.
Thanks.
#20
Quick question. Has anyone noticed that the 2019 Z06 M7 is prone to popping out of gear when the car starts out on a cold (< 30F) day? If so, does any particular fluid help to solve that issue, or is it just a design flaw? Or just my car, and I should visit the dealer?
Thanks.
Thanks.