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Home > Tdi > Has anyone ever used the Lucas Transmission Fix in an R380
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ryan_1993



Member Since: 20 Sep 2021
Location: Yorkshire
Posts: 14
United Kingdom 1999 Defender 90 300 Tdi CSW Rioja Red
Has anyone ever used the Lucas Transmission Fix in an R380
There’s nothing really wrong with my box it shifts fine it’s just aged and a little warn by now being 24 years old. My Landy Has done 148k. Planning on changing the gearbox oil to some brand new MTF94, but wondered if it would benefit from also adding some Lucas transmission fix additive inside too along with fresh oil.

I understand it’s mainly for automatic transmissions, but since the R380 was originally designed with ATF fluid in mind I assume it would work okay?

The Lucas description on the product does state “ Use also in light duty manual transmissions to increase shifting ease and transmission life.

To me that implies stuff like light trucks and pickups???

Just wondered if anyone else has used it
Post #959227 22nd Jul 2022 10:59pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3203
Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
There was never a LandRover gearbox that was designed for ATF! Rover decided to use ATF to smoothen cold shifting. I hear stories that the bearing suppliers even warned and voided their bearing warranties as ATF is not the best lubricant. Having said that, owners of the LT77 are kind of stuck in using ATF, as any thicker oil will damage or shear the oil pump.

For an R380 I would stick with the MTF. You do not need to add anything else. Regular service interval with good quality oil is more important. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #959239 23rd Jul 2022 7:16am
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2078
United Kingdom 1984 Defender 90 200 Tdi HT Pennine Grey
Sounds like snake oil to me !
Mo The Land Rover 90 - Many are called, few are chosen.
Post #959279 23rd Jul 2022 2:23pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1757
United Kingdom 
In my experience it works very well in addressing certain issues with traditional torque converter auto transmissions. However I would not use it it for Manual box’s or mixing with MTF.
Post #959284 23rd Jul 2022 3:48pm
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