trans oil?
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 2,762
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From: SUFFIELD CT USA 2023 C8 CORVETTE UN-MODIFIED FINALIST
2023 C8 of the Year Finalist - Unmodified
trans oil?
Where would I check the oil level on a 4 speed and where would I add if low.?
Race Director
Joined: Mar 2017
Posts: 11,949
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From: Virginia
The same advice as changing it. Unscrew the top fill port with the car raised and LEVEL. You should get no more than a dribble. If none comes out, fill at that port. You may need a hand pump (I bought one that mounts right on the jug).
The danger is when you change the fluid, If you can get the bottom drain port out, but not the fill port, you've now disabled your car, so unscrew the fill port first.
On a B&W Super T-10, the plugs are square-heads, so you need a 12-point wrench.
The danger is when you change the fluid, If you can get the bottom drain port out, but not the fill port, you've now disabled your car, so unscrew the fill port first.
On a B&W Super T-10, the plugs are square-heads, so you need a 12-point wrench.
Race Director
Joined: Nov 2006
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
Or, you could use the correct square socket.
Yes you can purchase the correct tool.
Yes you can purchase the correct tool.
Drifting
Joined: Jun 2020
Posts: 1,707
Likes: 734
From: Stay dangerous my friends
I’ve used the 10W60 shell supercar oil, drained after 2000 miles, no gold flakes and it looked new. Shifted excellent and fast behind the 6,500 rpm engine, fun to drive transmission for sure… and sold the trans to ZF Doc. He said it was perfect inside, just needed consumables, most of it ended up in a ZR1 in Germany.
Removed from a 1993 donor, black tag (meaning German manufactured) but helical cut gears as many 1993 had. Used it for autocross and a little bit of open track, removed it to install a new Tremec TKX Silver Sport kit.
I did have excessive wear on the clutch and flywheel especially for the low amount miles, but that’s mostly from aggressive starts with perhaps a little more torque than it may have been designed for.
But — After reading some of the horror stories, where I’m not sure what the real cause is, I would likely use syncromesh if I had to do it again.
Removed from a 1993 donor, black tag (meaning German manufactured) but helical cut gears as many 1993 had. Used it for autocross and a little bit of open track, removed it to install a new Tremec TKX Silver Sport kit.
I did have excessive wear on the clutch and flywheel especially for the low amount miles, but that’s mostly from aggressive starts with perhaps a little more torque than it may have been designed for.
But — After reading some of the horror stories, where I’m not sure what the real cause is, I would likely use syncromesh if I had to do it again.
Safety Car
Joined: Dec 2012
Posts: 3,815
Likes: 1,726
From: Summerville SC
I usually just remove the fill plug, put my finger in it and if I can feel the oil, it's good to go. but I am just an old guy who doesn't know any better than to be careful where you put your fingers....
Race Director
Joined: May 2006
Posts: 18,734
Likes: 2,582
I’ve used the 10W60 shell supercar oil, drained after 2000 miles, no gold flakes and it looked new. Shifted excellent and fast behind the 6,500 rpm engine, fun to drive transmission for sure… and sold the trans to ZF Doc. He said it was perfect inside, just needed consumables, most of it ended up in a ZR1 in Germany.
Removed from a 1993 donor, black tag (meaning German manufactured) but helical cut gears as many 1993 had. Used it for autocross and a little bit of open track, removed it to install a new Tremec TKX Silver Sport kit.
I did have excessive wear on the clutch and flywheel especially for the low amount miles, but that’s mostly from aggressive starts with perhaps a little more torque than it may have been designed for.
But — After reading some of the horror stories, where I’m not sure what the real cause is, I would likely use syncromesh if I had to do it again.
Removed from a 1993 donor, black tag (meaning German manufactured) but helical cut gears as many 1993 had. Used it for autocross and a little bit of open track, removed it to install a new Tremec TKX Silver Sport kit.
I did have excessive wear on the clutch and flywheel especially for the low amount miles, but that’s mostly from aggressive starts with perhaps a little more torque than it may have been designed for.
But — After reading some of the horror stories, where I’m not sure what the real cause is, I would likely use syncromesh if I had to do it again.
Drifting
Joined: Jun 2020
Posts: 1,707
Likes: 734
From: Stay dangerous my friends
Originally Posted by MelWff;[url=tel:1607689585
1607689585[/url]]the transmissions used in a C3 use a 75W90 oil, definitely not a 10W60.
