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admin
2019 3.6R & 98 Forester Atlanta, GA
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For the rear diff on both trannys and front diff on a 4EAT I use Redline 75-90NS. You will be fine using Redline 75-90 too.
 

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The Modfather
2019 Impreza 5dr Sport - Manual
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Discussion Starter · #5 ·
Peaty said:
http://www.scoobymods.com/forums/showthread.php?t=3091

I use Redline Shockproof in the tranny

in the rear I use Redline 75W-90 not the NS but it won't matter the rear LSD is sealed.

http://www.scoobymods.com/forums/showthread.php?t=1772

http://www.scoobymods.com/forums/showthread.php?t=3

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I have an 03 X, so I don't have the LSD :( does the NS or non NS matter still? Which is better?

As for the tranny, shockproof??? Isn't that a little thich :shock:

<--need education :) BTW I live in -40 degree climated....

thanks
 

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The convert formely known as Lexusfreak
2003 XS
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3,969 Posts
Anybody running Amsoil? I noticed the local Subi dealer near my house is promoting Motul.......that stuff any good? :?
 

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2004 Forester XT 4EAT
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I think I'll stick to OEM tranny and diff fluids. I have tried Redline products in my RS (even used Uncle Scotty's blend for a while) and they were marginally better than before. But the day I drove my Forester w/ 7000 miles, I can shift better than my old RS.
 

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The convert formely known as Lexusfreak
2003 XS
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3,969 Posts
How much is that stuff (lightweight or 'both') per qt compared to regular 'dino' stuff? :?
 

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SuperRu said:
For the rear diff on both trannys and front diff on a 4EAT I use Redline 75-90NS. You will be fine using Redline 75-90 too.
I want to change fluids in the spring and was thinking synthetic. I see here that Redline is popular. You recommend 75-90 or 75-90ns in both diffs, what do you recommend for the tranny (4EAT)?

Thanks
 

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admin
2019 3.6R & 98 Forester Atlanta, GA
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XT4ME said:
..... what do you recommend for the tranny (4EAT)?

Thanks
After a several hour search over @ Bob is the Oil Guy Forums, I've decided to use Chevron Dexron III in both of our 4EAT's. It's not the fanciest fluid but it is cheap and performs well.
With each engine oil change I drain and refill out 4EAT's. The amount of oil drained varies from 3.5 to 4.5 quarts. So I measure it each time and add back that same amount of fresh fluid. I get more to drain out of the 98 than I do with the 04.
 

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Premium Member
'09 STI
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4,128 Posts
Actually, Redline does NOT recommend the use of shockproof in our trannys. I know plenty of people have used the shockproof without incident but thought i'd offer this info as it comes straight from their site.
 

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Thank you all for the info. I have also been told by a friend (mechanic) that it's okay for syn's in the differentials but I should stick with OEM for the tranny. Wow! That's a suprise, only 3.5 to 4.5 quarts drain out. I was planning on about 9. Just saved myself some $$ :lol:
 

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admin
2019 3.6R & 98 Forester Atlanta, GA
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XT4ME said:
Thank you all for the info. I have also been told by a friend (mechanic) that it's okay for syn's in the differentials but I should stick with OEM for the tranny. Wow! That's a suprise, only 3.5 to 4.5 quarts drain out. I was planning on about 9. Just saved myself some $$ :lol:
The torque converter has a bunch of fluid sitting in it. It doesn't drain out when you remove the tranny pan bolt .
 

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2010 dodge caravan auto
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I use Royal purple 75W90 great stuff but in the spring I'm going to try Redline Lightweight shockproof gear oil
 
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