Synthetic gear lube |
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Synthetic gear lube |
partwerks |
Feb 2 2008, 10:49 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 |
I was wondering about putting Mobil 1 synthetic gear oil in the 914 trans but my mechanic mentioned that sometimes it is too slick and not enough friction in that the gears, from what I understood, don't slow down enough and causes problems.
I had used El Cheapo Co-op synthetic in my Jetta, but last week put in the Mobil 1 and what a improvement in the shifting even in it. So I was just wondering what type of difference it would make if I was to put it in the 914 trans? |
Twystd1 |
Feb 2 2008, 11:10 PM
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#2
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You don't want to know... really..... Group: Members Posts: 2,514 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743 |
Synth don't work in your 901 trans. Many have tried. Many have failed.
That goes for Redline MTL synth as well. Your 914 trans has a much different synchro arrangement than a Jetta. (or dam near any other manual trans for that matter.) Use the Swepco 201 oil. You and your trans will be happier for it. C |
sww914 |
Feb 2 2008, 11:26 PM
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#3
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Advanced Member Group: Members Posts: 2,439 Joined: 4-June 06 Member No.: 6,146 Region Association: None |
I tried it, bad idea. Stick with Swepco.
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brant |
Feb 3 2008, 11:41 PM
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#4
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914 Wizard Group: Members Posts: 11,632 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
I use it exclusively in race only applications
but more for heat really... brant |
akellym |
Feb 4 2008, 05:59 AM
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#5
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Eyes Of The Deep Battle Group: Members Posts: 597 Joined: 25-July 04 From: Annandale, MN Member No.: 2,395 Region Association: Northstar Region |
I've always had synthetic in mine and never had any problems. My 914 gets drivin all over the States and works perfectly. Here's a link to what I use.
http://www.amsoil.com/StoreFront/agl.aspx |
0396 |
Feb 4 2008, 07:35 AM
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#6
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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've asked an highschool buddy of mine that is a 'Porsche Master Tech' for the past 30+ yeas and his response was try some.. so I ended up using a 50/50 mix of Swepco and Mobil 1... I also had a 2nd gear issue with my 83 320i BMW - ended up putting Mobil 1 and shifting was a little easier....Just my 02cents |
PRS914-6 |
Feb 4 2008, 08:31 AM
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#7
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Excellence Magazine Project 914 3.6 Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None |
First let me say that the syncro setup in 901/915's do require more friction than the newer transmissions. It is said that synthetics are too slippery. If you are having any trouble with shifting due to a worn out box, I would not use synthetic.
Now with all that said, I use Mobil 1 in both my 911 and 914 (915 in both). They shift like butter. I should say that before switching, I rebuilt my trannies along with fresh clutches and cables. I'm not a "bang-shifter" either. I think if you are not pushing your tranny hard by shifting too fast and your tranny and clutch are in good shape you will enjoy much smoother shifting with synthetic. You will notice an immediate difference if your box is fresh since they shift very firm when new. Between the Rennshift and the synthetic it "almost" feels like a modern tranny. Others will scorn this but it works great for me....... |
Red-Beard |
Feb 4 2008, 09:01 PM
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#8
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"Ya canna change the laws of Physics" Group: Benefactors Posts: 1,124 Joined: 11-February 03 From: Houston, TX Member No.: 288 Region Association: None |
Jake uses Synthetic. I use Synthetic, but only after the 1st change. I hate wasting synthetic if I have a leak.
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iamchappy |
Feb 4 2008, 09:25 PM
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#9
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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 always had synthetic in mine and never had any problems. My 914 gets drivin all over the States and works perfectly. Here's a link to what I use. http://www.amsoil.com/StoreFront/agl.aspx I second that, I have been running Amsoil in my 914s for over 20 years and have never had a problem, and it makes it shift real smooth. |
PRS914-6 |
Feb 4 2008, 10:02 PM
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#10
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Excellence Magazine Project 914 3.6 Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None |
Jake uses Synthetic. I use Synthetic, but only after the 1st change. I hate wasting synthetic if I have a leak. I probably should have stated that you should break them in on dino before filling with synthetic. I posted a break in procedure on the bird board 915 break-in |
Downunderman |
Feb 4 2008, 10:32 PM
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#11
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Senior Member Group: Members Posts: 852 Joined: 31-May 03 From: Sydney, Australia Member No.: 766 Region Association: Australia and New Zealand |
Motul FF-LSD works really well, and is suitable for clutch style LSD. Shifts as well if not better than dino.
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cnavarro |
Feb 7 2008, 08:08 PM
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#12
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Cylinder Guru Group: Members Posts: 472 Joined: 30-December 02 From: Chicagoland! Member No.: 49 Region Association: None |
Swepco 201 for 901, 915.
Mobilube SHC (now Delvac 1) for G50 and later. |
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