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Old 04-26-2008, 04:31 PM   #1476
Bort
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Quote:
Originally Posted by DS1 Motorsports View Post
Bluescoobywagon & Bort- The 1st gear down shift issue is common in 02'-03' no matter what fluid you run the 4th gear issue is actually caused by a broken 3rd gear synchronizer. By running the cocktail you are just furthering the damge it causes

As for the 5th gear issue, they are known to crack the hub and cause issues.

-Dylan @ DS1
That may be the case. Maybe all that **** inside is broken or worn, but at 97K miles it shifts just fine on Valvoline non synthetic The only time I had any really bad symptoms was when I switched to the Valvoline synthetic for a short time over 50K miles ago. Yes I ran the cocktail for a while after that and maybe it did accelerate wear, but that's not why I chimed in. I just wanted to point out that in my case (and others) synthetic gear oil greatly exacerbated shifting flaws.
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Old 04-26-2008, 07:29 PM   #1477
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Quote:
Originally Posted by Bort View Post
That may be the case. Maybe all that **** inside is broken or worn, but at 97K miles it shifts just fine on Valvoline non synthetic The only time I had any really bad symptoms was when I switched to the Valvoline synthetic for a short time over 50K miles ago. Yes I ran the cocktail for a while after that and maybe it did accelerate wear, but that's not why I chimed in. I just wanted to point out that in my case (and others) synthetic gear oil greatly exacerbated shifting flaws.

Have you tried any other brand of synthetic gear oil? Just because Valvoline synthetic did not have favorable results in your case, don't lump all synthetic gear oil into a group as being bad for the 5mt. I have used Valvoline, Royal Purple, Neo oil, Ams oil synthetics all with out issue along with the factory OEM lube off the assembly line. Yes I do have a personal preference as to which one I thought gave the best over all feel and one I dislike the most, but that also changes with summer and winter(same weight oil).

Last edited by flstffxe; 04-26-2008 at 08:35 PM.
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Old 04-26-2008, 07:50 PM   #1478
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^^^Good point about trying other oils but I'm happy with what I'm using. I was just pointing out to DS1 that the Valvoline Syn doesn't work for everyone.
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Old 04-27-2008, 12:45 AM   #1479
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70k miles on USC and no problems,, this is after replacing the syncros twice before the warranty was up..
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Old 04-28-2008, 08:41 AM   #1480
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Quote:
Originally Posted by flstffxe View Post
Have you tried any other brand of synthetic gear oil? Just because Valvoline synthetic did not have favorable results in your case, don't lump all synthetic gear oil into a group as being bad for the 5mt. I have used Valvoline, Royal Purple, Neo oil, Ams oil synthetics all with out issue along with the factory OEM lube off the assembly line. Yes I do have a personal preference as to which one I thought gave the best over all feel and one I dislike the most, but that also changes with summer and winter(same weight oil).
I used LubroMoly 75W-90 Synthetic between 30k and 60k miles. It was fantastic in all but the warmest weather. Now I'm on Valv Synth.
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Old 04-28-2008, 09:20 AM   #1481
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I only ready a few pages back, so this may be a repeat...

What are the current thoughts on running redline lightweight shockproof on a 5MT? I've been using it for a ~30k miles now and am happy with it...
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Old 04-28-2008, 02:21 PM   #1482
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Quote:
Originally Posted by DS1 Motorsports View Post
Bluescoobywagon & Bort- The 1st gear down shift issue is common in 02'-03' no matter what fluid you run the 4th gear issue is actually caused by a broken 3rd gear synchronizer. By running the cocktail you are just furthering the damge it causes

As for the 5th gear issue, they are known to crack the hub and cause issues.

-Dylan @ DS1
Except that the issues went away with non-syn oil. Also, before switching to the synthetic, I was able to downshift into first with the car moving. After switching, the car had to be at a dead stop and still didn't always want to go in gear. I never tried other brands, but there are more than 2 people that have problems with synthetic oil in the 5MT.
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Old 04-28-2008, 02:37 PM   #1483
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Quote:
Originally Posted by bluescoobywagon View Post
I never tried other brands, but there are more than 2 people that have problems with synthetic oil in the 5MT.
I'm one of 'em! Redline 75w90 gave me a wicked 4th gear grind when downshifting from 5th at speeds above 40mph that wasn't there when using mineral-based fluids.

Last edited by Spenk; 04-29-2008 at 08:03 AM. Reason: correct fluid description
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Old 04-28-2008, 03:56 PM   #1484
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^^ MT90 is an ATF based fluid for Honda transmissions.

We've been running the Valvoline syn. for over 5 years in all of out customer's street cars and never had an issue. We run the Motul Gear 300 in all of our "hard use" cars and no issues there either and it's synthetic.

-Dylan @ DS1
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Old 04-28-2008, 04:11 PM   #1485
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Would trying a synthetic with different viscosity (higher possibly) solve some of these guys' synchro issues?
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Old 04-28-2008, 06:25 PM   #1486
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Sometimes a higher viscosity can cause syncro issues because the gear has to be spun up to speed while submerged in the fluid

-Dylan @ DS1
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Old 04-28-2008, 10:02 PM   #1487
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I've replaced my syncros twice using the valvoline syn...
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Old 04-29-2008, 01:56 PM   #1488
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^^ which gear syncro?
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Old 04-29-2008, 02:05 PM   #1489
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Quote:
Originally Posted by Soul Shinobi View Post
It's said the cocktail should be changed every 10-15K miles. We've been discussing the excessive wear caused by the cocktail and the following fluids have been recomended:

Subaru Extra-S (ask for it at a dealer, or buy a 5 gallon drum, not sold by the quart)
75w90w Valvoline
Amsoil
Motul Gear 300

does anyone know a good site that has either of these two oils at a good price? I am going to replace the US cocktail with reg 75w 90 non-synthetic gear oil.

I dont want to harm the tranny at all with a synthetic that will be too slippery.

thanks

Jay
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Old 04-29-2008, 02:07 PM   #1490
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It's been so long but I know the infamous 3-4th, and there were others but the whole thing had gone to crap on dealer lube.. twice.. Maybe I'll try the others later depending on what I do with the car since I have a broken engine..
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Old 04-29-2008, 03:31 PM   #1491
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^^ that's not a fluid issue, there is a design flaw in the 3-4 set. Do you have a short throw in the car?

Jay04WRX- We have the Valvoline and Motul in stock.

-Dylan
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Old 04-29-2008, 03:39 PM   #1492
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Quote:
Originally Posted by DS1 Motorsports View Post
^^ that's not a fluid issue, there is a design flaw in the 3-4 set. Do you have a short throw in the car?

Jay04WRX- We have the Valvoline and Motul in stock.

-Dylan
Yes I do have a short throw in my car (kartboy). How much would it be each shipped to 06029 for what I need? I think it was 5 quarts, i forgot sorry.


Jay
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Old 04-29-2008, 06:11 PM   #1493
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^^^ I would swap out for the SPT short throw. 5 quarts of Motul Gear 300 is $90 shipped

-Dylan @ DS1
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Old 04-29-2008, 07:04 PM   #1494
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Quote:
Originally Posted by DS1 Motorsports View Post
^^^ I would swap out for the SPT short throw. 5 quarts of Motul Gear 300 is $90 shipped

-Dylan @ DS1
What makes the SPT better than the KB shifter?
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Old 04-29-2008, 07:20 PM   #1495
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+1 Would like to know the answer too.
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Old 04-29-2008, 07:39 PM   #1496
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The angle of the linkage. If you run a KB shifter look how the linkage changes angle when installed. We see a lot of shift selector seals leaking with KB shifters.

-Dylan
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Old 04-29-2008, 08:02 PM   #1497
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.............

Last edited by Rickyh; 04-30-2008 at 08:34 PM.
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Old 04-29-2008, 09:43 PM   #1498
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so whats your solution to a design flaw? because USC is the only solution that I have found,

maybe when I get my donor I will tear apart the tranny as well just to see if theres any mayhem going on..

Quote:
Originally Posted by DS1 Motorsports View Post
^^ that's not a fluid issue, there is a design flaw in the 3-4 set. Do you have a short throw in the car?

Jay04WRX- We have the Valvoline and Motul in stock.

-Dylan
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Old 04-29-2008, 09:50 PM   #1499
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Quote:
Originally Posted by DS1 Motorsports View Post
The angle of the linkage. If you run a KB shifter look how the linkage changes angle when installed. We see a lot of shift selector seals leaking with KB shifters.

-Dylan
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Old 04-30-2008, 08:00 AM   #1500
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Quote:
Originally Posted by DS1 Motorsports View Post
^^^ I would swap out for the SPT short throw. 5 quarts of Motul Gear 300 is $90 shipped

-Dylan @ DS1
How much for the valvoline?
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