| Author | Message | ||
     Douglas McMillan (Mcmillan) Member Username: Mcmillan Post Number: 59 Registered: 06-2002 |
Has anyone used some high milage Dextron III oil in a manual gearbox to help stop leaks? If so what ones would you recommend? Or is this a bad idea? (I have a 94 Disco) | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 136 Registered: 05-2003 |
ATF in a manual box is a bad I idea full stop Land rover hasn't used it for years. What you need is a light GL4 gear oil. I'm not sure what you can get in the US, I use either Castrol syntrans 75/80,Valvolene dura gear 75/85, Penrite xtralight gearbox oil. ATF causes tooth contact and syncro wear. Don't use a normal GL5 80/90, if you do it wont change gears. LT77 and R380 boxes often leak from the gear shifter. The top of the box vibrates loose. www.penrite.com.au | ||
| Douglas McMillan (Mcmillan) Member Username: Mcmillan Post Number: 61 Registered: 06-2002 |
The manual says use ATFIII for both a stick and auto transmission. What else would you recommend? Does anyone recommend something to stop leaks? | ||
| Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 945 Registered: 02-2002 |
Use Redline MTL http://www.redlineoil.com/frames/gearoil.htm#Mtl others have had good luck with this apparently, but it will do nothing for leaks - it is just a better lubricant. Bill | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 139 Registered: 05-2003 |
No one uses Atf in them anymore not even Landrover. In fact many of the LR work shops won't warrenty a rebuilt box if you use ATF. ATF causes syncro wear and tooth contact. Landrover still uses a version of this box and they don't put ATF in them. Caltex in Australia make a GL4 oil that is called Landrover gearbox oil (I think this may be texaco in the US). Where does it leak from. | ||
| Douglas McMillan (Mcmillan) Member Username: Mcmillan Post Number: 63 Registered: 06-2002 |
The leak seems to be on top, somewhere on the rear of the unit where it joins the Transfer case. | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 142 Registered: 05-2003 |
I reckon the shifter has come loose. The gearbox top often vibrate loose or the seal at the bottom of the stick fails. | ||
| Frode Hübertz Haaland (Discofrode) Member Username: Discofrode Post Number: 122 Registered: 02-2002 |
If yours is an R380, you'd better stick to the Rover specced Caltex MTF94 (also called Rover MTF94 in some countries). THis is honey-coloured, and gives a far better shifting than when using what they recommended earlier years (pre servicebulletin 25.11.1998). | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 144 Registered: 05-2003 |
Frode as I have already specified above this and other gl4 oils are suitable for both LT77 and r380 boxes I find Dura gear, Penrite xtralite and best of all Castrol syntrans to be the best. | ||
| Douglas McMillan (Mcmillan) Member Username: Mcmillan Post Number: 64 Registered: 06-2002 |
GL4 is what is recommended in the diffs. Are you proposing that I can use the same in the manual gearbox? | ||
| eric johnson (Eric2) Member Username: Eric2 Post Number: 107 Registered: 05-2003 |
Sta-Lube makes a 85/90 GL-4. | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 150 Registered: 05-2003 |
No Gl4 is the extreme pressure rating. 85/90 is to thick. What is needed is a Gl4 with a weight of 75w80. Too thick and they won't change gears. Valvoline sell one called Dura Gear 70/85 in OZ and this works well. Caltex make on called Landrover gearbox oil to the same spec. Castol syntrans is the best |
