| Author | Message | ||
| Steven R. Rochlin (Enjoythemusic)
Member Username: Enjoythemusic Post Number: 517 Registered: 4-2002 |
Hmmm... why is it no one mentions Amsoil tranny fluid? Have it in the '85 308GTS QV and she shifts smooth like buttah once warm and happy. Even cold it is ok 'cept the usual 2nd gear that is gone once warm. Enjoy the Drive, Steven R. Rochlin | ||
| Darryl - TR&328 (Tr328)
New member Username: Tr328 Post Number: 5 Registered: 6-2003 |
I just had my transmission (1985 Testarossa)rebuilt and my mechanic used Redline at my request. The gears were really stiff, he switched to Swepco and it's much smoother and easier to shift. My recommendations is Swepco. Good Luck. | ||
| David Feinberg (Fastradio2)
Junior Member Username: Fastradio2 Post Number: 238 Registered: 4-2002 |
To refresh memories... I did my BB gearbox over last winter. There were no brass or bronze synchros in it...However, the OE SKF replacement mainshaft bearings did have a bronze bearing cage. Eitherway, I've had the best luck with Royal Purple Maxlube 75/90. I did speak with the engineers at RP... For all practical purposes, the BB gearbox is identical to the TR, with the exception of the diff. No noises/chatter from the diff, either... Regards, David | ||
| James Selevan (Jselevan)
Member Username: Jselevan Post Number: 634 Registered: 6-2002 |
David - thanks for the heads up. I was responding to a "...Rang Mobil..." 1 who confirmed problems using Mobil 1 and BRASS synchros. If F-cars do not use brass, then we should revisit the Mobil 1 issue. Jim S. | ||
| david handa (Davehanda)
Intermediate Member Username: Davehanda Post Number: 1134 Registered: 5-2001 |
James, let's please be careful with the Mobil 1 warnings. It is appearing to be completely unfounded and based on the (apparently) mistaken belief that Ferraris have brass/bronze synchros. JRV, Ric Rainbolt, my local mechanic and many others who have actually been inside these transmissions, are saying it is not true, that they are steel. I've used Redline, Swepco and Mobil 1, and Mobil 1 has offered the best shifting of the bunch for me. I was ready to dump it out this week...glad I didn't. | ||
| James Selevan (Jselevan)
Member Username: Jselevan Post Number: 632 Registered: 6-2002 |
Henry - the Mopar LSD additive can be purchased at any Dodge dealer parts department. It may be available elsewhere, but this is where I got it. It comes in a small plastic bottle. The quantity is pre-ordained. Add the bottle. That's all. No more. Do you need it? I might wait and see if you have any shudder or chatter of the LSD clutch plates. If not, don't bother. Jim S. | ||
| Robert Oglesby (Testar1988)
New member Username: Testar1988 Post Number: 14 Registered: 5-2003 |
Thank's you guy's for all your input, I think I need to stay away from Mobil 1..the Mopar additive sound's like the ticket..I do run Mobil 1 in my motor, hope there is no issues there!! Thank's Again..Robert | ||
| F-J'87EuroTR (Ferrarijoe)
Member Username: Ferrarijoe Post Number: 325 Registered: 5-2001 |
First of all, you have three drain plugs on the gearbox and transfer case. The gearbox drain plugs are the huge brass bolts fore and aft under motor. The transfer case drain plug is at the bottom of the transfer case. Drain the gear oil while it is warm to get most of the old oil out. Then replace the three plugs as mentioned. You have two recessed 12mm Allen plugs to fill gear oil and reference over fill. One is at the top-right of the transfer case. It is used to refill the gear oil. The other one is located on the rear motor mount cross brace to reference over fill. I made the below tools by purchasing a Craftsman 12mm elbowed Allen tool and a 12mm 3/8� socket. I cut off the short end of the Allen tool and used the remainder as a tool for the over fill plug. The shortened head helped to clear between the rear motor mount cross brace and the rear chassis tubing. I then used epoxy to hold the cut off piece into the 12mm socket and used it for loosening and tightening the upper transfer case fill plug. Begin filling the upper transfer case plughole with gear oil until the lower over fill plughole starts to leak and replace the lower plug. This will fill both the transfer case and the gearbox to the proper level of approximately 11 to 12 qts. depending on how much you drain and how level your car is. I personally use Kendall 80-90 gear oil and it is fantastic. I don't have the classic 2nd gear shift problems on a moderately warm motor. I hope this helps, Joe  | ||
| Henryk (Henryk)
Member Username: Henryk Post Number: 845 Registered: 8-2001 |
Jim: My Boxer has Castro Hypoy C 75W-90 in the trans. After I complete the clutch I will add more of the same. The container states that it is good for limited slip diffs. My question is that would it be a good idea to add the Mopar LSD additive to it, and how much do you ad? I assume any Chrysler dealer has this. | ||
| James Selevan (Jselevan)
Member Username: Jselevan Post Number: 631 Registered: 6-2002 |
Robert - wait one! Just read the other thread concerning transmission fluid. There is reason to believe, based on this thread, that Mobile 1 may not be the best choice (despite Bill G.s recommendation). I quote from this other thread: "Many GL-5 oils are corrosive to brass syncro rings. If you check the archives, you'll see that someone here called Mobil and verified that Mobil 1 gear oil will eat your syncros. And, no, don't flame. That's directly from Mobil. Call them yourself." And a reply: "Hans, Excellent advice. Rang mobile and they agree not to use it. Got worried and rand Castrol. They have said Castrol Synthrax 75w-90 is ok to use. Will not harm yellow metals, brass etc. They have found out that phosphates and sulphates that are used in base oil products is what causes the corrosion. Castrol and other oil company are using a new type of inhibitor." Probably best to stay with Shell or Agip, and if necessary add the LSD additive. Jim S. | ||
| James Selevan (Jselevan)
Member Username: Jselevan Post Number: 630 Registered: 6-2002 |
The Mopar and Agip worked quite well in the TR. The Mobile 1 is expensive, and one man's opinion. Ferrari of Orange County uses the Agip, Bill Gojkov of Enzo recommends the Mobile 1. Bill's recommendation concerning Mopar LSD additive saved me rebuilding a differential and clutch plates (necessitating engine removal). I can attest to the Mopar. Jim S. | ||
| Jeff Green (Carguy)
Member Username: Carguy Post Number: 344 Registered: 10-2002 |
Thanks James for that first hand information. I hear pluses and minuses of mobil 1 in trannies, mainly synchro wear on certain types of materials. There are almost too many options out there. I guess mobil or agip is okay. I like the agip with mopar additive combination. That's probably the direction I'll go. Again, thanks for sharing your experiences. | ||
| James Selevan (Jselevan)
Member Username: Jselevan Post Number: 629 Registered: 6-2002 |
I have little additional information other than the recommendation of the guru who did my 30k service on the Boxer. When my TR engine had the 30k service, the transmission was dry for 6 weeks. They filled it with Agip. When driving away from the shop I felt a shudder when coming slowly off the line with the wheel turned slightly. I later learned that it was the limited slip differential clutch plates chattering. The guru recommended draining the Agip and filling with Mobil 1 gear lube AND adding MOPAR limited slip differential additive. Rather than draining the fluid, I simply added the MOPAR limited slip differential additive. It worked - no more shudder. The take home lesson is that when draining and changing the transmission, you may experience the unintended consequence of LSD clutch chatter. Furthermore, the guru only uses Mobil 1 gear lube, which is what is in the Boxer. For what it is worth. Jim S. | ||
| Jeff Green (Carguy)
Member Username: Carguy Post Number: 343 Registered: 10-2002 |
I agree with Robert...my TR will need this done also. But recent posts about tranny fluid leave me confused. I'm thinking of simply getting the Agip stuff and not worrying about alternatives. I've heard the Agip oil is not too pricey, but don't know where to buy it? Anyone? Anyone? | ||
| Robert Oglesby (Testar1988)
New member Username: Testar1988 Post Number: 13 Registered: 5-2003 |
Hello, I am about to change the transmission fluid in my 1988 Testarossa, any info on what brand of gear oil/weight/how much needed??? I have a service manual, just want any input from people that have done this job before..I like to to everything I can myself, just don't trust anyone to work on my car!!! I think most Ferrari owner's know what I mean!! Thank's...Robert |