Guest Posted February 10, 2008 Share Posted February 10, 2008 I was referring to you..... Link to comment Share on other sites More sharing options...
Kompleks Posted February 10, 2008 Share Posted February 10, 2008 royal purple gave me 11 whp on a dyno, no lie Link to comment Share on other sites More sharing options...
Guest Posted February 10, 2008 Share Posted February 10, 2008 royal purple gave me 11 whp on a dyno, no lie Link to comment Share on other sites More sharing options...
JoeFromPA Posted February 11, 2008 Share Posted February 11, 2008 Over on a BMW forum, a gentleman put 75w90 gear oil into his manual transmission (which called for a whole different lubricant). He drove it a couple of miles and said it "shifted like shit". He swapped to a redline fluid and said it felt like glass..or maybe butter.... My point is: That guy was an idiot but he thought the was buying the right stuff. Make sure you purchase the correct lubricant for your differentials/trans/LSDs. I'd always recommend posting exactly what you bought on a forum and giving people a day or two to respond. Use the knowledge base. The gentleman I mentioned above didn't know that 75w90 gear oil is different than other 75w90......and neither did I, until I read the responses to him mocking him for his idiocy Of course, I wasn't shopping it. So I feel superior. By the way, did someone say LSD additive? Isn't that illegal? And why do subies run well on it? Joe Link to comment Share on other sites More sharing options...
Underdog Posted March 11, 2008 Share Posted March 11, 2008 The Redline 75W90 gear oil seems like it was intended directly for our application: "Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5." Redline advertises their 75W90NS thusly, "This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin." What could be more clear than that? I haven't read anything negative about these fluids. It makes sense to me that you would need two different fluids for these components. The Crimson Dynamo Link to comment Share on other sites More sharing options...
Underdog Posted March 11, 2008 Share Posted March 11, 2008 ^ Unless the "friction modifier" is only intended for clutch-type and not necessary for the viscous-coupling type. Hmm. The Crimson Dynamo Link to comment Share on other sites More sharing options...
SBT Posted March 19, 2008 Share Posted March 19, 2008 Anyone come up with the P/N for the Extra-S quarts? SBT - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
BlackHole Posted March 19, 2008 Share Posted March 19, 2008 Anyone come up with the P/N for the Extra-S quarts? No such animal AFAIK. Kyle "BlackHole" Link to comment Share on other sites More sharing options...
socalsleeper Posted March 31, 2008 Share Posted March 31, 2008 The Redline 75W90 gear oil seems like it was intended directly for our application: "Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5." Redline advertises their 75W90NS thusly, "This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin." What could be more clear than that? I haven't read anything negative about these fluids. It makes sense to me that you would need two different fluids for these components. DO NOT USE REDLINE IN YOUR TRANS!!!! I paid out the nose for this fluid and though I was "upgrading" But I started to get the Syncro grind in 3rd and 5th. I swaped back to Subie OEM fluid oil and got MUCH Better. But if you think your trans is "special" form the rest of ours go ahead just a warning. Link to comment Share on other sites More sharing options...
Underdog Posted March 31, 2008 Share Posted March 31, 2008 But if you think your trans is "special" form the rest of ours go ahead just a warning. Did I say anything to indicate I thought my 5MT was "special"? Did you make sure you used the 75W90NS in your transmission, any chance you used the normal 75W90? The Crimson Dynamo Link to comment Share on other sites More sharing options...
socalsleeper Posted March 31, 2008 Share Posted March 31, 2008 Did I say anything to indicate I thought my 5MT was "special"? Did you make sure you used the 75W90NS in your transmission, any chance you used the normal 75W90? A.) I was not refering to you as being "Special" It was a general statement B.)I work on cars for a living, Reading the labels is very important. C.)Yes It was the right oil. D.) So if you feel like redline is the product you want to use in you car go ahead it will grind. Link to comment Share on other sites More sharing options...
Underdog Posted March 31, 2008 Share Posted March 31, 2008 ahh, I see. The Crimson Dynamo Link to comment Share on other sites More sharing options...
what Posted March 31, 2008 Share Posted March 31, 2008 royal purple gave me 11 whp on a dyno, no lie That fact has been proven by a few people.. well maybe not 11 whp, but it has been proven to increase hp over regular oil. Link to comment Share on other sites More sharing options...
what Posted March 31, 2008 Share Posted March 31, 2008 Anyone know if theres a different or thicker oil that you can put in the center diff to make it lock more, or quicker? Link to comment Share on other sites More sharing options...
socalsleeper Posted April 1, 2008 Share Posted April 1, 2008 I belive that the subaru center diff is a sealed unit and that the gear oil does not contact the diff itself. Also that the STI's work best at the 50/50 setting and not with the other crazy settings. The legacy is already 50/50 split unless you are doing some serious track events the diffs are the last thing you should start messing with. Link to comment Share on other sites More sharing options...
SBT Posted April 3, 2008 Share Posted April 3, 2008 I belive that the subaru center diff is a sealed unit and that the gear oil does not contact the diff itself. Also that the STI's work best at the 50/50 setting and not with the other crazy settings. The legacy is already 50/50 split unless you are doing some serious track events the diffs are the last thing you should start messing with. Correct on all points. Although there are times in the mountains, when I wish I had an STI front diff (04 variant) SBT - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
what Posted April 3, 2008 Share Posted April 3, 2008 Correct on all points. Although there are times in the mountains, when I wish I had an STI front diff (04 variant) SBT I wish my LGT had the whole STI drivetrain.. blah.. Which is why I will probably eventually trade my LGT in for an STI. Link to comment Share on other sites More sharing options...
Long Island Legacy Posted April 3, 2008 Share Posted April 3, 2008 I wish my LGT had the whole STI drivetrain.. blah.. Which is why I will probably eventually trade my LGT in for an STI. lol i think the same but i love the legacy overall as a car alot more then a impreza. Link to comment Share on other sites More sharing options...
psucaptainkickass Posted April 3, 2008 Share Posted April 3, 2008 How long did you have redline in before experiencing grinding? I've had it in for about 14k, and it's been through winter...no grinding so far. Link to comment Share on other sites More sharing options...
socalsleeper Posted April 3, 2008 Share Posted April 3, 2008 Right around 10-15K It was not horrible but anything other than a granny shift and there would be a slight crunch. Witch was no bueno! So I have some Extra-S in the garage right now I just need to get my t70 form Jose. Link to comment Share on other sites More sharing options...
psucaptainkickass Posted April 4, 2008 Share Posted April 4, 2008 I guess I will keep a watch out for any extra grinding. I haven't heard anything unusual, and the redline was awesome in the winter for cold shifting! Link to comment Share on other sites More sharing options...
LittleBlueGT Posted April 9, 2008 Share Posted April 9, 2008 The Redline 75W90 gear oil seems like it was intended directly for our application: "Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5." Redline advertises their 75W90NS thusly, "This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin." What could be more clear than that? I haven't read anything negative about these fluids. It makes sense to me that you would need two different fluids for these components. Anyone get this figured out. I have the two above RL fluids in my tranny and rear diff. My tranny shifts fine, even at -40F. I believe that red-line sells the additive separately. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
Underdog Posted April 9, 2008 Share Posted April 9, 2008 The point of my post was that it's extremely straight-forward. 75W90NS for the transmission. 75W90 (or 75W90NS + Friction Modifier) for the rear LSD. The only thing I question is whether the LSD units they recommend the friction modifier for are of the VC type or the clutch-type. The Crimson Dynamo Link to comment Share on other sites More sharing options...
LittleBlueGT Posted April 9, 2008 Share Posted April 9, 2008 I agree, that is what I have in my car now. I want to know if the friction modifier is recommended with the Subaru Extra-S gear oil. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
socalsleeper Posted April 9, 2008 Share Posted April 9, 2008 I used the Extra-S as is no additive. Fine so far shifts like Butter.... If you want to still use redline.... go ahead just trying to help with my experience. Link to comment Share on other sites More sharing options...
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