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Old 10-28-2011, 12:56 AM   #2376
StealthScooBC
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Quote:
Originally Posted by Uncle Scotty View Post
man...the cold would be a bitch....i dont really know what would be good for that

the lightweight is as light as id go......and that DOES wear out

you dont want to go too light as that isnt good for the bearings and r&p
Fair enough! It gets pretty cold I know, I'm not a fan of it myself but that's where the money is! The oil money, so to speak (pun intended).

I'll look for the lightweight then. What would you recommend for the rear diff. - regardless of temperature? What do you personally use on your 06? (I have an 06 WRX)
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Old 10-28-2011, 01:11 AM   #2377
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Quote:
Originally Posted by StealthScooBC View Post
Fair enough! It gets pretty cold I know, I'm not a fan of it myself but that's where the money is! The oil money, so to speak (pun intended).


yeah...im in texas mudlogging and the pay IS good...BUT we stay warmer here

I'll look for the lightweight then. What would you recommend for the rear diff. - regardless of temperature? What do you personally use on your 06? (I have an 06 WRX)
the rear diff....mmmmmm....do they have any 75w90 gl5????
spirax or hypoyc or anything???
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Old 10-28-2011, 02:26 AM   #2378
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Quote:
Originally Posted by Uncle Scotty View Post
the rear diff....mmmmmm....do they have any 75w90 gl5????
spirax or hypoyc or anything???
They have a wide selection, I read about the hypoyC in the rear diff before, so perhaps Ill give that a try.

Thanks a lot! Ill update when I do it this weekend.
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Old 10-28-2011, 10:22 AM   #2379
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Originally Posted by StealthScooBC View Post
They have a wide selection, I read about the hypoyC in the rear diff before, so perhaps Ill give that a try.

Thanks a lot! Ill update when I do it this weekend.
yeah...i think that canada is one of the places that has the 75w90 hypoyc....use that or the spirax

the 'cocktail' is actually better with the 75w90 but it isnt available where i am anymore
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Old 10-28-2011, 03:37 PM   #2380
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Alright, I'll try for the 75w/90.

1qt. RL lightweight
2qt. 75w/90 hypoyC
~1qt. topped with Penz syncro

1qt 75w/90 hypoyC in the rear.

Looking forward to doing it tomorrow! Will let you know how it goes, probably gonna drain the **** out of it all day because I have a feeling he didnt change it once in the 80k km. that hes had the car for. Just bought it used, still tuning it up.

Will let you know how it feels!
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Old 10-30-2011, 03:57 AM   #2381
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Uncle Scotty - have you tried the combo Andrewtech recommends?

3 RL lightweight and 1 moutul 300?

If so, how does that feel compared to your combo?

Am I correct in guessing that it is the syncromesh is the key to the smoothness you mentioned?

I guess after reading all I can, I'm confused about possible damage from the 'cocktail' as far as longer term breakdown.

I'm all for a smooth shift, but it still isn't clear if there isn't the potential for damage with it?

(I know, I'm beating a dead horse)
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Old 10-30-2011, 11:28 AM   #2382
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Quote:
Originally Posted by ezil71 View Post
Uncle Scotty - have you tried the combo Andrewtech recommends?

3 RL lightweight and 1 moutul 300?
no....there is no need

what I use works as well as anything could.....
I have tried all sorts of **** in these gearboxes and what I have come up with works great...I have got VERY few pm's or emails over the years that have been anything but positive---and there have been thousands
and most of those, the ones that were anything but happy......have been from idiots who bought and used the wrong thing....NOT my problem


.....and it costs MUCH-MUCH-MUCH more than what I use

see my point????
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Old 10-30-2011, 11:19 PM   #2383
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I guess I'm just hung up on the lab tests/possible long term damage...

UC - have you ever had a test done on your mix to make sure it isn't eating the transmission? I know others have, but it is hard to know what to believe on these boards.

I don't doubt that it works at all. Just don't want to do damage, still reading up on it just in case.

Not trying to be a pain about it either, I hear ya on why it is good re: performance/smoothness and cost
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Old 11-02-2011, 11:19 AM   #2384
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So just got my 06 5spd rebuilt by Andrew tech with stock gears. Is there any particular fluid I should use or a cocktail? I'm also going to change my rear diff.
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Old 11-02-2011, 02:10 PM   #2385
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Quote:
Originally Posted by Halls06wrx View Post
So just got my 06 5spd rebuilt by Andrew tech with stock gears. Is there any particular fluid I should use or a cocktail? I'm also going to change my rear diff.
Read your owner's manual.
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Old 11-02-2011, 02:22 PM   #2386
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Quote:
Originally Posted by Superorb
Read your owner's manual.
Done that before and changed with the oem spec gear oil. Just wondering if I should run a blend or if there are any gear lubes that work better than others lol.
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Old 11-03-2011, 11:30 PM   #2387
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I guess I'm just looking for a WI (-100* temps) friendly cocktail
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Old 11-05-2011, 03:32 PM   #2388
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Quote:
Originally Posted by turbocharged9589 View Post
I guess I'm just looking for a WI (-100* temps) friendly cocktail
gfl.....i might be inclined to try and find a 75w90 hypoyc or spirax and add a quart of the lightweight shockproof
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Old 11-06-2011, 03:37 PM   #2389
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Do you think this would also benefit in a manual transmission for a turbo Baja? my 2-3 and 3-2 shift is bit sticky at times.
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Old 11-06-2011, 04:04 PM   #2390
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This applies to all Subaru 5 speeds.
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Old 11-09-2011, 09:46 PM   #2391
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I just feel like I wasted money, I've got 4 qts of ams oil severe gear collecting dust. I'm thinking that and a qt of shockproof for the trans. Maybe use the extra qt of severe gear on the rear diff?
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Old 11-14-2011, 12:10 AM   #2392
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Finally got around to changing out the front/rear fluids, the rear diff fluid looked terrible, dark grey, 3 very small shards in there . The transaxle fluid looked suprisingly good though. Swapped that out with Scotty's mix (80w/90 hypoyC, no spirax or 75w/90! lame!), cold shifts are quite a bit better, a little less notchy once warm. Not quite the improvement I have seen others report, but an improvement none-the-less!
Most likely due to the 80w/90. It'l be interesting to see how that reacts in the winter. What'cha think Scotty?

Yet another satisfied user!

Last edited by StealthScooBC; 11-14-2011 at 12:15 AM.
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Old 11-30-2011, 12:58 PM   #2393
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does anyone have any recommendations or brands to stay away from I was thinking of using mobil 1 75w 90 synthetic btw the car is an just an 04 stage 1 wagon also what would anyone recommend for the rear diff thanks
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Old 11-30-2011, 11:14 PM   #2394
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Quote:
Originally Posted by WRBoss
does anyone have any recommendations or brands to stay away from I was thinking of using mobil 1 75w 90 synthetic btw the car is an just an 04 stage 1 wagon also what would anyone recommend for the rear diff thanks
Stay away from the typical M1 75W-90 LS. It has limited slip additives which are not good for ideal synchro engagement. Google Mobil Delvac if you want to run Mobil.

-Dennis
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Old 12-07-2011, 08:49 PM   #2395
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.....

Last edited by Ruvim555; 12-07-2011 at 10:35 PM.
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Old 12-07-2011, 09:57 PM   #2396
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scottys cocktail is great....but ive been using my own cocktail in my 04 wrx wagon.....

2qts penzoil syncromesh
1.8qts of valvoline 75w90


been running it since 80k when i bought it four years ago....my car last night just hit 190K. STILL shifts like butter. I change it every 10k because it costs next to nothing!
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Old 12-08-2011, 01:47 PM   #2397
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Quote:
Originally Posted by ScooobaSeth View Post
scottys cocktail is great....but ive been using my own cocktail in my 04 wrx wagon.....

2qts penzoil syncromesh
1.8qts of valvoline 75w90


been running it since 80k when i bought it four years ago....my car last night just hit 190K. STILL shifts like butter. I change it every 10k because it costs next to nothing!
Where do you find the valvoline 75w90?
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Old 02-12-2012, 09:12 PM   #2398
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Any down side to running 100% LW-SP in a DD doing 70 miles a day in New England besides the price tag?

I guess i just don't want to run a mix of fluids if i don't need them to make the transmission shift more smoothly.

When I got my 07 wrx it had 21K on it and the gear box and was shifting great and still does for a Subaru. After driving the car for a while i decided to try the USC and there was a slight improvement in shifting smoothness but nothing earth shattering like in my 04.

Anyway i drained the USC after a few K because i got scared off by all the BS about how bad it was suspected to be according to some. But honestly if i still had the 04 i would be running a cocktail due to the inherent design flaws in that older 5mt.

Presently i am running 2.5 castrol hypoid C 80w90 and .5ish synchromesh and i works nice in the warmer months but not so great in the cold.

the chipper circle of death rational got me to consider running the LW-SP exclusively.

Thanks
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Old 02-12-2012, 11:47 PM   #2399
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I had grind in 2nd and 4rth on my 04 sti strans.. I did 2 Qts Redline shock p. and 2 Qts Vavoline 75 90w.. No need for other crap to mix. No more grind on any gear no matter how hard i shift
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Old 02-19-2012, 02:12 AM   #2400
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have run Andrewtech's mix for 185,000 miles (218,509 miles total on trans)... no issues goes into 1st below 15mph without issue... still shifts like butter.


for those who were curious about longevity.

but do have some decel rattles from light flywheel....cant gave it all
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