LC gearbox oil

Submitted: Sunday, Jul 03, 2005 at 15:20
ThreadID: 24389 Views:1326 Replies:2 FollowUps:4
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I've recently tried Mobil 424 in the 80 series which now drives like it's got a new gearbox. Smooth changes, no more crunching on down shifts. It's marketed as a tractor transmission fluid but works wonders helping the syncro's engage smoothly.
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Reply By: Member - Davoe (Widgiemooltha) - Sunday, Jul 03, 2005 at 15:28

Sunday, Jul 03, 2005 at 15:28
Is it an atf fluid?? I hear these give great shifts but do nothing for box reliablity
AnswerID: 118637

Follow Up By: jon p qld - Sunday, Jul 03, 2005 at 20:01

Sunday, Jul 03, 2005 at 20:01
G'day Davoe
No it's not an ATF fluid it's a multipurpose tractor and heavy machinery drive train oil but can also be used in gearbox's requiring an API GL-4 or SAE 80W lubricant. We've used it in many vehicles at work to overcome gear shifting problems with good results
Regards Jon
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Follow Up By: 120scruiser - Sunday, Jul 03, 2005 at 21:09

Sunday, Jul 03, 2005 at 21:09
My workshop uses it in all LC gearbox's and have for awhile.
We have also used it in front wheel drive gearbox's for years. Great oil with great results.
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Follow Up By: Member - Davoe (Widgiemooltha) - Sunday, Jul 03, 2005 at 21:18

Sunday, Jul 03, 2005 at 21:18
hmmmmmm not all that happy with my gearshift I thik I used shell 75-90 have particular problems selecting 1st at standstill , back to 2nd is pretty trucklike as well
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Reply By: Kiwi Ray - Monday, Jul 04, 2005 at 06:42

Monday, Jul 04, 2005 at 06:42
Hi Davoe
424 is a trans oil for the bigger autos as in machinery. it is used in a lot of european boxs that do not require dextron based oil
Your LC gearbox should have 75w80 gear oil. If the oil you have in now is a diff it has an extreme pressure additive and this stops the syncros engaging.
You may need to change the oil a couple of times to get all the additive out

Ray
AnswerID: 118716

Follow Up By: Member - Davoe (Widgiemooltha) - Monday, Jul 04, 2005 at 17:14

Monday, Jul 04, 2005 at 17:14
O´n second thoughts it prob was 75 80 it certainly was the recomended grade but I understand when 80s are concerned oils aint oils
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