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Use Lucas Transmission Fix... or better not??? #881653 04/19/08 01:45 AM
Joined: Sep 2005
Posts: 9
Arnoud Offline OP
Need a Spot
'91 LC (190k) ATF hose broke, I lost all ATF fluid. Fixed hose, bought new ATF. Guy in car shop sold me Lucas Transmission Fix - said it was good to use in older cars.

I'm not sure - like some opinions. Transmission was working without any problems, no slip, shifts beautifully.

I read it is good for preventive maintenance. But I also read it's very thick goo which may clog up the filter and/or do potential other damage.

All comments are very welcome - seems it was not discussed on this forum before. Thanks!


'91 LandCruiser
From the Off-Road World
Re: Use Lucas Transmission Fix... or better not??? [Re: Arnoud] #881654 04/19/08 02:24 AM
Joined: Aug 2003
Posts: 480
MAC Offline
Mudrunner
Nooooo. Don't put that gunk in there. oem spec ATF only. Why would you want to mess with it if it has no problems?

Re: Use Lucas Transmission Fix... or better not??? [Re: MAC] #881655 04/19/08 01:15 PM
Joined: Feb 2007
Posts: 199
gueroblanco Offline
Wheeler
dont use the tweaker motto: "if it aint broke, fix it til it is."


'95 runner 3vze/r150f
Re: Use Lucas Transmission Fix... or better not??? [Re: gueroblanco] #881656 04/19/08 01:27 PM
Joined: Sep 2006
Posts: 81
O
ovrrdrive Offline
Getting the Wheeling Fever
I hate to sound like a broken record, but I used the Lucas engine treatment twice and both times I had to have a new motor put in about 3 months later...

Additives aren't necesarry...

Re: Use Lucas Transmission Fix... or better not??? [Re: Arnoud] #881657 04/20/08 03:16 AM
Joined: Apr 2001
Posts: 606
904runner2dr Offline
Rock Warrior
One more thing.Don't use that stuff,OEM fluid is perfect.

Re: Use Lucas Transmission Fix... or better not??? [Re: 904runner2dr] #881658 04/20/08 05:11 PM
Joined: Dec 2004
Posts: 143
S
salvo Offline
Wheeler
Used thr trans fix once 2 weeks later i had no forward gears left. One big boom at the stop light and done.... Trans ran perfect before i used it too...

Re: Use Lucas Transmission Fix... or better not??? [Re: 904runner2dr] #881659 04/20/08 05:17 PM
Joined: Sep 2005
Posts: 9
Arnoud Offline OP
Need a Spot
Thanks for the responses! Yeah, don't fix if it ain't broke.

In some other car forums there are reports it "saved" them... but none here(?). I guess it helps (temporary?) if something is wrong with the transmission already.

I wonder what causes other (older) cars to suffer from transmission slip, bad shifting etc. I can see some wear on the gears, but that shouldn't cause slip, right?


'91 LandCruiser
Re: Use Lucas Transmission Fix... or better not??? [Re: Arnoud] #881660 04/20/08 07:18 PM
Joined: Sep 2005
Posts: 9
Arnoud Offline OP
Need a Spot
The car shop guy also seems to have sold me the wrong ATF type (type F), while my (Haynes) manual lists Dexron II. Good I didn't put it in yet!

However, it seems Dexron II is no longer for sale, replaced by Dexron VI. But what about this:

Dexron-VI -- For 2006 GM Hydra-Matic 6L80 6-speed rear-wheel-drive transmissions, can also be used in 2005 transmissions that require Dexron III but is NOT recommended for older transmissions.

What actually is the correct (OEM) ATF to use (for a Toyota LC 1991)?


'91 LandCruiser
Re: Use Lucas Transmission Fix... or better not??? [Re: Arnoud] #881661 04/20/08 08:30 PM
Joined: May 2007
Posts: 37
W
walktastic Offline
Getting the Wheeling Fever
what about the stuff in the silver can called engine restor? would that cause problems in the engine? i only ask since we are on the subject of additives.


V6 pickup 4x4, 385,000 miles and still ticking
Re: Use Lucas Transmission Fix... or better not??? [Re: Arnoud] #881662 04/20/08 09:43 PM
Joined: Dec 2003
Posts: 201
T
toyomorph Offline
Wheeler
You could probably use Red Line Synthetic ATF, or D4 ATF, in place of Dexron II.

Red Line Synthetic ATF

Red Line D4 ATF


canyon country explorer
1993 4x PUP
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