Trans Gear Oil |
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Trans Gear Oil |
partwerks |
Jul 12 2010, 06:03 PM
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#1
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Senior Member Group: Members Posts: 1,593 Joined: 7-September 06 From: Grand Island, NE Member No.: 6,787 |
Is synthetic gear oil ok to be used in the transaxle to make it shift easier or is that a no, no?
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realred914 |
Jul 12 2010, 06:15 PM
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#2
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Senior Member Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None |
the right sythetic is fine, I got about 80K miles on redline sythetic in mine, and that is in a tranny that did not shift well, until I switched oil, it was really like a mechanic in a can. no kidding,
just dont buy any old sythetic, just as you would not buy any old dino gear oil, your tranny has many functions, it is a gear box with requirements for the Porsche style syncronizers, and it is also a differential, with the special needs there. Redline offer many formulas of gear oil they make one specifically for Porsche transaxles (remember you got to lube the gears and the differential) I'd go to redlines webiste and read up which product to use, i know some time ago they changed some of the names, so I dont want to be quoated wrong, so check the website. it really is good stuff, solve a very bad shifting clash probelm, plus it is much much eaiser to shift when cold in the winter than before. 80K miles and still that 'dead" tranny is working fine. good luck |
SLITS |
Jul 12 2010, 06:16 PM
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#3
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
It is:
1.) Expensive 2.) Seems to leak out fast. Ok, I put it in one box and that's what happened. I just use good old 90 wt. Worked for 40 years with no problems. Others may have opinions that vary. |
Cap'n Krusty |
Jul 12 2010, 06:37 PM
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#4
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Look at the labels or the specs sheets. Porsche requires the use of gear oils meeting the "GL5" specifications. Not GL4, not One-size-fits-all, and definitely NOT anything containing MOSO2 or any other product that claims to be slippery. Friction based synchronizers are NOT fond of slippery, as it prevents their proper operation. Furthermore, even more on the downside, flushing will NOT remove the residue of such products. Replacement of the synchro bands will.
The Cap'n |
jimkelly |
Jul 12 2010, 07:40 PM
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#5
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
here is a GL5 label. ( not for limited slip )
must be hypoid - or something like that. jim Look at the labels or the specs sheets. Porsche requires the use of gear oils meeting the "GL5" specifications. Not GL4, not One-size-fits-all, and definitely NOT anything containing MOSO2 or any other product that claims to be slippery. Friction based synchronizers are NOT fond of slippery, as it prevents their proper operation. Furthermore, even more on the downside, flushing will NOT remove the residue of such products. Replacement of the synchro bands will. The Cap'n Attached image(s) |
partwerks |
Jul 12 2010, 08:06 PM
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#6
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Senior Member Group: Members Posts: 1,593 Joined: 7-September 06 From: Grand Island, NE Member No.: 6,787 |
So I just need to make sure it is a GL5 then that I use?
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Dr Evil |
Jul 12 2010, 08:36 PM
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#7
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Send me your transmission! Group: Members Posts: 23,002 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
No synth. For more info, click on the link below for the 31 pg transmission notes.
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iamchappy |
Jul 12 2010, 09:05 PM
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#8
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It all happens so fast! Group: Members Posts: 4,893 Joined: 5-November 03 From: minnetonka, mn Member No.: 1,315 Region Association: Upper MidWest |
I've been using Amsoil in my Transmissions since the late 70's, i've never had any problems because of it or rebuilds or leaks, all have worked fine and thats a pretty good test of time and miles, how bad can it be.
Mike i just read your supplement and understand your reasons, i can and even have a nice inline filter that i can use between my transmission cooler and the box. |
tuff914 |
Jul 12 2010, 10:07 PM
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#9
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Member Group: Members Posts: 67 Joined: 6-May 08 From: Australia Member No.: 9,020 Region Association: None |
Ok so now you guys have me worried, I also had some trouble shifting
so I added this http://www.molybond.com.au/index2.php?opti...1&Itemid=73 and this http://www.nulon.com.au/products/Manual_Ge...Diff_Treatment/ along with a quality GL5 oil(castrol), shifts really, really well. Should I be worried??????? |
fp racer |
Jul 12 2010, 10:35 PM
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#10
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Newbie Group: Members Posts: 15 Joined: 25-December 09 From: san jose ca. Member No.: 11,172 Region Association: None |
I put the cheapest stuff I could find at pepboys in my race trans. It shifted the same as the swepco I took out. I was not going to pay the $59.00 for the sewpco. I read all the threads on this and decided to go the cheap way. I also put $0.99 motor oil with a bottle of zinc in my race motor. Ran it for two races then switched to race oil. No difference in temps or performance.
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BigD9146gt |
Jul 13 2010, 12:12 AM
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#11
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OCD member Group: Members Posts: 376 Joined: 24-January 05 From: Sydney, Australia Member No.: 3,502 Region Association: Australia and New Zealand |
I put top of the line synthetic in my tranny way back when I first got my 914(when I knew nothing about these cars). Stuff came out in less than a week and put in swepco... ever looked back. If I changed my tranny oil the same duration as motor oil, I could understand going cheap. However, 30,40,50 thousand miles before you would need to change it out? Relatively, $60 is not that expensive. I recall Porsche having problems with 935 trannys blowing up under the 24hour mark, and teams trying anything they could to get them to last. Once they switched to swepco, most of the problems went away. not sure how true that story is, i'll ask my friend who was a 935 crew chief at LeMans in the 70's, he might remember.
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stephenaki |
Jul 13 2010, 04:47 AM
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#12
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Can I get this one dad?? Group: Members Posts: 1,183 Joined: 11-August 07 From: Palmetto, FL Member No.: 7,987 Region Association: None |
No synth. For more info, click on the link below for the 31 pg transmission notes. Just read through it, very informative, thanks for doing the write up on it. (IMG:style_emoticons/default/beerchug.gif) |
0396 |
Jul 13 2010, 07:42 AM
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#13
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Advanced Member Group: Members Posts: 2,046 Joined: 13-October 03 From: L.A. Calif Member No.: 1,245 Region Association: Southern California |
I put top of the line synthetic in my tranny way back when I first got my 914(when I knew nothing about these cars). Stuff came out in less than a week and put in swepco... ever looked back. If I changed my tranny oil the same duration as motor oil, I could understand going cheap. However, 30,40,50 thousand miles before you would need to change it out? Relatively, $60 is not that expensive. I recall Porsche having problems with 935 trannys blowing up under the 24hour mark, and teams trying anything they could to get them to last. Once they switched to swepco, most of the problems went away. not sure how true that story is, i'll ask my friend who was a 935 crew chief at LeMans in the 70's, he might remember. The above 'story' is what sold me on utilizing Swepco...then I remember Art Zapf and I rebuilt my trans and he mentioned - just put the regular stuff in and change it after every event... in the end it's all up to you. Heck, my daily driver -1983 320i with 135k had shifting hang ups ..I bought Swepco with 'moly'...and it shifts much smoother now.... go figure. |
realred914 |
Jul 13 2010, 09:13 AM
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#14
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Senior Member Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None |
redline sythetic made all the differeance, great stuff, 80k miles on it, and no leak issues either. the tranny did not shift worth sh*t until I switched to redline, prior to that a full change of stalube gear oil did not resolve the probelm, red line did and it is the correct stuff for the 914 tranny.
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Drums66 |
Jul 13 2010, 12:15 PM
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#15
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914 Rudiments Group: Members Posts: 5,321 Joined: 15-January 03 From: Coronado,Cali Member No.: 151 Region Association: Southwest Region |
redline sythetic made all the differeance, great stuff, 80k miles on it, and no leak issues either. the tranny did not shift worth sh*t until I switched to redline, prior to that a full change of stalube gear oil did not resolve the probelm, red line did and it is the correct stuff for the 914 tranny. (IMG:style_emoticons/default/agree.gif) Totaly(regular redline is also great) P.S. some people even pour it over ice cream lol |
Root_Werks |
Jul 13 2010, 02:03 PM
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#16
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Village Idiot Group: Members Posts: 8,337 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
Maple Syrup so I have something to put on my pancakes when it leaks out. (IMG:style_emoticons/default/biggrin.gif)
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BigD9146gt |
Jul 13 2010, 10:23 PM
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#17
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OCD member Group: Members Posts: 376 Joined: 24-January 05 From: Sydney, Australia Member No.: 3,502 Region Association: Australia and New Zealand |
So I spoke with my friend who crew chief'd 935's back in the day, and Swepco was it. He recalled standing next to Jerry Woods (long time friends since days of LeMans) and talking about tranny oil and that was the only oil they used. Since then, I agree many others have caught up and still make great oils. Its interesting how different trannys react to different oils (i know its all about how the syncros and dog teeth work)... like how some people work on beer (IMG:style_emoticons/default/beer.gif) , others vodka (IMG:style_emoticons/default/barf.gif) , and me scotch (16yr minimum (IMG:style_emoticons/default/drunk.gif) Lagavulin anyone?)
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