Not another transmission question............ - ZR-1 Net Registry Forums

Z51JEFF · 02-17-2010

I want to replace the fluid in the transmission and might go with Redline MTL.I spoke with Bill B and I was told this might make the trans a little bit smother.What is the majority using?

ZR1Vette · 02-17-2010

Castrol TWS 10-60 would appear to be the weapon of choice. Down side is it is pricey and only available (mid Atlantic area folks anyway) from BMW dealerships.

ZR1Vette · 02-17-2010

Well this is a first... the BMW dealership charged less per qt. that the internet price

tomtom72 · 02-17-2010

Cliff, nice link!

Those guys sell it for almost half the price that the local BMW stores sell it for in my neck of the woods.

Tom

Dynomite · 02-17-2010

Quote:

Originally Posted by tomtom72

Cliff, nice link!

Those guys sell it for almost half the price that the local BMW stores sell it for in my neck of the woods.

Tom

Tom....just some more information for ya

"There is two different colored bottles the Castrol TWS 10W-60 comes in. THEY ARE THE EXACT SAME PRODUCT, JUST DIFFERENT COLORED BOTTLE. The newer bottle, Gold Colored, has updated information on the back which now includes M6 and Z4 M's. Other than that it is the exact same oil… Sometimes the cases purchased from BMW are the new Gold color and sometimes it's the traditional Grey… But not to worry it is the same good 'ol stuff…"

A26B · 02-17-2010

It's odd to me that Bill would endorse RedLine for use in the transmission.

When I acquired my 94 ZR-1, it had about 60,000 miles. While doing all the maintenance, I switched to Red Line in the trans. The original GM fill looked new when drained. In less than 5,000 miles (don't remember the exact numbers) the trans seized, and I mean locked up such that it could not be disengaged by shifting or clutch release. It had to be dragged onto a wrecker.

While talking to Bill about a rebuild, he mentioned that he knew of a couple of others that had the same experience with a change to Red Line & was wondering if there was a connection.

Enough for me to never use it again. I put Castrol in the new transmission & never looked back.

bdw18_123 · 02-17-2010

I used the Castrol oil from the BMW dealership in my '93 LT1's ZF6 I used to have & never had a problem. I'm planning to use it in my '90 Z's ZF6 also.

Polo-1 · 02-17-2010

[QUOTE=Z51JEFF;82404]I want to replace the fluid in the transmission and might go with Redline MTL.QUOTE]

DONT DO REDLINE MTL in the Trans..

It will foam out on a high speed run, and be all over the car not in the tranny.

Z51JEFF · 02-18-2010

After reading Jerrys response that did it for me,Castrol it is.

02-17-2010	#1
Z51JEFF Join Date: Dec 2007 Location: Fremont,Ca Posts: 3,079	Not another transmission question............ I want to replace the fluid in the transmission and might go with Redline MTL.I spoke with Bill B and I was told this might make the trans a little bit smother.What is the majority using?

02-17-2010	#2
ZR1Vette Join Date: Dec 2007 Location: Reston, Virginia Posts: 939	Re: Not another transmission question............ Castrol TWS 10-60 would appear to be the weapon of choice. Down side is it is pricey and only available (mid Atlantic area folks anyway) from BMW dealerships. __________________ Michael :cheers: [I][SIZE="2"]1990 RED on RED #566[/SIZE][/I] [I][SIZE="2"]WAZOO MEMBER[/I][/SIZE]

02-17-2010	#3
ZR1Vette Join Date: Dec 2007 Location: Reston, Virginia Posts: 939	Re: Not another transmission question............ Well this is a first... the BMW dealership charged less per qt. that the internet price __________________ Michael :cheers: [I][SIZE="2"]1990 RED on RED #566[/SIZE][/I] [I][SIZE="2"]WAZOO MEMBER[/I][/SIZE]

02-17-2010	#4
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Not another transmission question............ Cliff, nice link! Those guys sell it for almost half the price that the local BMW stores sell it for in my neck of the woods. Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

02-17-2010	#6
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,394	Re: Not another transmission question............ It's odd to me that Bill would endorse RedLine for use in the transmission. When I acquired my 94 ZR-1, it had about 60,000 miles. While doing all the maintenance, I switched to Red Line in the trans. The original GM fill looked new when drained. In less than 5,000 miles (don't remember the exact numbers) the trans seized, and I mean locked up such that it could not be disengaged by shifting or clutch release. It had to be dragged onto a wrecker. While talking to Bill about a rebuild, he mentioned that he knew of a couple of others that had the same experience with a change to Red Line & was wondering if there was a connection. Enough for me to never use it again. I put Castrol in the new transmission & never looked back. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.

02-17-2010	#7
bdw18_123 Join Date: Apr 2009 Location: Prather, CA Posts: 809	Re: Not another transmission question............ I used the Castrol oil from the BMW dealership in my '93 LT1's ZF6 I used to have & never had a problem. I'm planning to use it in my '90 Z's ZF6 also. __________________ [IMG]http://i13.photobucket.com/albums/a292/bdw18_123/_zr1netforumsigphoto.jpg[/IMG][B] 1990 Corvette ZR-1 [/B][I] White/Flame Red, #2299, mostly stock, 144K miles.[/I] -Cams timed to the '93-'95 405HP LT5 stock timing. -IAT sensor relocated to below front bumper. -Haibeck hoops installed in airduct. -OBX cat-back exhaust. [COLOR=DarkRed][B](SOLD - December 2012 [/B][/COLOR][COLOR=DarkRed][B]:hello:)[/B][/COLOR] 1993 Corvette Coupe Black/Black, 6-speed (SOLD - October 2009 :hello:)

02-17-2010	#8
Polo-1 Join Date: Sep 2005 Location: Washington Posts: 955	Re: Not another transmission question............ [QUOTE=Z51JEFF;82404]I want to replace the fluid in the transmission and might go with Redline MTL.QUOTE] DONT DO REDLINE MTL in the Trans.. It will foam out on a high speed run, and be all over the car not in the tranny.

02-18-2010	#9
Z51JEFF Join Date: Dec 2007 Location: Fremont,Ca Posts: 3,079	Re: Not another transmission question............ After reading Jerrys response that did it for me,Castrol it is.