| Author | Message | ||
     Barry (Boulderbear) New Member Username: Boulderbear Post Number: 15 Registered: 10-2003 |
Just put in a new R380 & reconditioned the transfer......what do you recommend I fill them up with? I know what the book says but this is the source........... Thanks........Barry | ||
| Will Tillery (Will) Senior Member Username: Will Post Number: 341 Registered: 11-2002 |
Barry- Auto •••••• fluid in the r380 is fine and your gear oil should do the deal for the tfer case. | ||
| JEEPETR (Jeepetr) New Member Username: Jeepetr Post Number: 27 Registered: 02-2003 |
Hey Barry, Your Manual likely says Automatic Transmission fluid (ATF) in the Gearbox, and 80W90 in the Transfer case. After Land Rover stopped importing Manual transmission trucks into the US (1997), they released a Technical Service Bulletin to change the manual transmission lubricant from ATF to Caltex MTF-94 (http://www.caltex.com.au/products_oil_detail.asp?id=107) I have not been able to locate a dealer for this in the US, but Redline Oil’s (www.redlineoil.com) MTL has near identical specifications, and I would highly recommend running it for greater protection (I do in both my Rovers). I may be the minority, but I never agreed with running ATF in a manual transmission, I just don’t feel it offers adequate protection. As for the transfer case, I hope you made sure that it had an updated input gear that was cross drilled for additional oiling of the transmission input shaft. If not, you may want to retrofit one. As for the lubricant, I again recommend Redline Oil’s gear oils. I run their 75W140 in the transfer case and Differentials, but their 75W90 gear oil would be closes to factory specs. Because of the issue with insufficient oiling of the output shaft/input gear union, some mechanics in the Rover world recommend slightly overfilling the transfer case to increase the splash lubrication on the output shaft/input gear, as they are at the highest point in the t-case. I myself have elected to do this. For me the easiest way to accomplish it is to park the truck nose down on a slight incline, allowing me to add about a ¼ quart of additional oil. Top off frequently, as it leaks out in almost all vehicles over time. Hope this helps. ~Scott T. ’95 D-90 (JEEPETR) ’96 Discovery (5-Speed) | ||
| Ron Brown (Ron) Senior Member Username: Ron Post Number: 765 Registered: 04-2001 |
MTL in the R380, MTL in the R380!!!! 75w90 gear oil in the T-case. Ron | ||
| Barry (Boulderbear) New Member Username: Boulderbear Post Number: 17 Registered: 10-2003 |
Thanks guys...............MTL it is. Thanks Scott....yup, I got a crossed drilled input gear for the T-case. I'd say do it once; do it right.........but with LR, do it right everytime  | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 244 Registered: 05-2003 |
Never put ATF in an LT77 or R380. LR hasn't done this since the late 90's. ATF causes tooth contact(wear) and syncro wear. Use a 70/80 MTF gl4 type fluid. In Australia Caltex make one just called Landrover gear box oil. I use either Valvoline Dura Gear or Penrite eXtra lite gear oil. In my own car I run Castrol Syntrans. For the Transfer box I use Penrite 10 tenths Synthetic 85/90 race oil. Castrol make some here call Syntrax and SAF-XA these work well as well. | ||
| Will Tillery (Will) Senior Member Username: Will Post Number: 351 Registered: 11-2002 |
Wow..thats news...Good to know though. I know the local dealer uses ATF and I have talked with several other shops that have. This is the info we had: R380 in all production RV8s after VIN 0644 and any other R380 made up to 1998. Castrol Dextron II or Dextron III or other makers equivalent. R380 made from 1998 Castrol SMX-S synthetic oil or other makers equivalent | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 245 Registered: 05-2003 |
Will it sounds like US dealers don't no how to work on 5 speeds but then I guess there isn't many over there. There are heaps here in Oz and all Defenders are 5 Speed of course. My own car had the mainshaft and drilled gear fitted under warenty in 97 and Southside Landrover in Brisbane filled it with MTF then. The place I buy all my parts from here, "M.R.Automotive(an after-market LR shop)" reckon they have been using 70/80 GL4 MTF since 93 and the boxes never give a problem. They have a customer with 130 inch Defender crew cab with 600k KM on the original box. | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 246 Registered: 05-2003 |
Check out the Penrite web site WWW.penrite.com.au. It says they have a dealer in Texas called classic oil or something. His web site is wrong it says the oil comes from the UK, it's made in Australia. The stuff you want is called Gear box xtra lite and for the tranfer case 10 tenths 75/90 synthetic. It's all on the web site data sheets etc. It's not bad stuff. I've used their oils since the 80's in every thing from tough street cars to my E type Jag | ||
| Will Tillery (Will) Senior Member Username: Will Post Number: 357 Registered: 11-2002 |
Well..Thanks for info..I just aquired a r380 and will definitely take the advice. | ||
| Kevin Hans (Kmhans) New Member Username: Kmhans Post Number: 39 Registered: 01-2004 |
My D1 has the manual gearbox with 115k on it. I don't know if it has the correct drilling on the gear you are talking about, but I assume so if it has lasted this long. My question is, not knowing what the gearbox is filled with now, are there any precautions I should take before draining and refilling with a synthetic like the ones mentioned here? Thanks | ||
| Will Tillery (Will) Senior Member Username: Will Post Number: 358 Registered: 11-2002 |
Called George at RDS he stated the ATF was what he advises to all his clients. | ||
| Rob Soetewey (Robbert) New Member Username: Robbert Post Number: 24 Registered: 01-2003 |
Seems like there are oil specialists here. Hangng out in Africa, and running in my LT77 gearbox a mixture of 50%ATF and 50% 0W40 engine oil, just because my mechanic told me this would be better in hot climates. Oils available here are pretty low specification: ATF, SAE40 or SAE50, and EP140 for diffs and transfer boxes. Any sugestions on what is better to throw in the gearbox? Thanks, Rob | ||
| Brett A. Naquin (Bnaquin) Member Username: Bnaquin Post Number: 76 Registered: 09-2003 |
Take a look at Royal Purple synthetic oils. They're great products. www.royalpurple.com | ||
| Ron Brown (Ron) Senior Member Username: Ron Post Number: 771 Registered: 04-2001 |
Will ATF will work but it does not let the synchros live long term. Like everything else it is a trade off. Driveability when cold (ATF) as opposed to longer synchro life (MTL). Ron | ||
| Mark Devereux (Groupw) Member Username: Groupw Post Number: 130 Registered: 12-2002 |
Is there a way to get a copy of the technical bulletin regarding ATF?? This is the first I've heard of it, and my dealer (land Rover Denver East)swears that we should still be using type F ATF. Not that I really trust them, but I'd like to have the document. | ||
| Kevin Hans (Kmhans) Member Username: Kmhans Post Number: 49 Registered: 01-2004 |
Picked up some Amsoil products today. To be safe, I got the ATF and the 80w-90 gear oil. I need to replace everything in the vehicle, so I figured this was a safe bet. Based on what you are saying here, it appears that the gear oil has the GL-4 rating but the ATF meets (and exceeds) the specs in the shop manual for discovery 94-98. Which should I put in the r380?! Spoke with a friend of mine earlier, he recommended that I only use ATF in the 5spd because he once ran gear oil in his 90. He said that the gearbox ran very quiet and smooth with the gearoil, but could not be shifted when cold. In fact, he could only get it into 1st when the engine was turned off! Thanks | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 249 Registered: 05-2003 |
Guys the oil for these boxes is not gear oil like diff oil. It's Manual tranmission fuild it is as thin as atf even though it is 75/80 rated. It actually makes them shift better than they do with ATF when cold or hot. Because it is gl4 rated it means it has a degree of extreame pressure aditive (like diff oil which is gl5 ie more extreame pressure ad). These sort of fuilds are designed for this purpose and even LR use it as factory fill since the late 90's. I can't believe no one in the US knows about it. Most LR aftermarket shops here in OZ won't warrenty a reco box if run on ATF. If you can't get it in the US try WWW.difflock.com in the UK and they will send you some. You will never run AFT again and your box will last longer. Maybe the US dealers don't work on many LT77's and R380's so they don't know how to deal with them. | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 250 Registered: 05-2003 |
Here is the link from diff lock on how to change the oil and what to use. They call it MT75 http://www.difflock.com/servicing/5speed-oilchange/5speed-oilchange.shtml |
