garygbnj Posted July 18, 2019 Share Posted July 18, 2019 2010 LGT 6 mt. Is the notchy shiftiing, same as wrx setup, caused by the cable shifter or the trans itself? Sti, I believe, has the same trans but with linkage rather than cable shifter and does not have notchy shifting. Link to comment Share on other sites More sharing options...
cww516 Posted July 18, 2019 Share Posted July 18, 2019 The STI transmission is actually a completely different unit, cable shifter or not. The LGT 6MT is actually the same as the pre-2015 WRX (and everything else besides the Spec.B) 5-speed with an extra gear jammed in and a cable shifter instead of a linkage. I'm guessing the shifter has something to do with it, although my Baja feels fairly notchy as well. Granted, it has twice the miles that the Legacy does, so it's not a fair comparison, and I have no idea when the last trans fluid change was done on it. Link to comment Share on other sites More sharing options...
garygbnj Posted July 19, 2019 Author Share Posted July 19, 2019 Thanks Link to comment Share on other sites More sharing options...
FLlegacy Posted July 23, 2019 Share Posted July 23, 2019 I do believe there is some improvement to be had in the 15+ WRX oem STI upgrade. Not the STI shifter, I tried to not be confusing there...not sure it worked. Anyway, the WRX has an upgraded shifter available that is supposed to really tighten up the feel on our cars as well. Link to comment Share on other sites More sharing options...
garygbnj Posted July 23, 2019 Author Share Posted July 23, 2019 Thanks Link to comment Share on other sites More sharing options...
dgoodhue Posted July 23, 2019 Share Posted July 23, 2019 The shift feel gets better with different transmission fluid as well. The Legacy/Outback was the 1st vehicle to get this cable transmission with extra 6th gear. Subaru came out with a different fluid in 2014 that is now the factory fill for all the cable operated 6MT. Link to comment Share on other sites More sharing options...
garygbnj Posted July 23, 2019 Author Share Posted July 23, 2019 Thanks. What is the name of the fluid? Link to comment Share on other sites More sharing options...
dgoodhue Posted July 23, 2019 Share Posted July 23, 2019 Extra MT. The last I looked Subaru only sold it in 5 gallon buckets and 55 gallon drums. (I bought a 5 gallon bucket) Some dealers will sell it separately. Link to comment Share on other sites More sharing options...
coco26 Posted July 23, 2019 Share Posted July 23, 2019 They changed the name from Extra S to "high performance gear oil" a year or two ago I think. My local dealer only had it in quarts. I flushed and filled with it about 120 miles ago and so far I'm not impressed - I'll be going back to motul gear 300 next time. Link to comment Share on other sites More sharing options...
dgoodhue Posted July 23, 2019 Share Posted July 23, 2019 They changed the name from Extra S to "high performance gear oil" a year or two ago I think. My local dealer only had it in quarts. I flushed and filled with it about 120 miles ago and so far I'm not impressed - I'll be going back to motul gear 300 next time. The high performance gear oil is what is called for the STI transmission and is different than the Extra MT. Link to comment Share on other sites More sharing options...
dgoodhue Posted July 23, 2019 Share Posted July 23, 2019 This probably what you used. https://www.subarupartwholesale.com/p/Subaru__/Genuine-Subaru-Certified-High-Performance-Gear-Oil-SAE-75W-90--1-Quart-Bottle-1-Quart-Bottle/60032876/SOA427V1700.html?partner=googlebase_adwords&kwd=&origin=pla&partnerDevice=c&userLocation=9002253&gclid=CjwKCAjw4NrpBRBsEiwAUcLcDB4eKogaN8ND9EEzfqIn6xKrrGum63ABcxksTLZlxBsdPBBoMOgd4xoCjKYQAvD_BwE This what I used. https://parts.subaru.com/a/Subaru_2012_Legacy-25L-TURBO-6MT-4WD-GT-Limited-Sedan/_78985_7322130/Gear-Oil/maintenance_subaru_GearOil.html Link to comment Share on other sites More sharing options...
coco26 Posted July 23, 2019 Share Posted July 23, 2019 Interesting. You're right. I wonder what's so different about it that it's double the price if its not meant for STI's. Link to comment Share on other sites More sharing options...
garygbnj Posted July 23, 2019 Author Share Posted July 23, 2019 Has anyone switched from the cocktail of motul/redline to extra Mt 75-80w. Is there a significant difference? Link to comment Share on other sites More sharing options...
dgoodhue Posted July 24, 2019 Share Posted July 24, 2019 Interesting. You're right. I wonder what's so different about it that it's double the price if its not meant for STI's. Extra MT is 75w80, HPGO is 75w90. Has anyone switched from the cocktail of motul/redline to extra Mt 75-80w. Is there a significant difference? The cocktail is what someone else put in my Legacy GT previously. Extra MT was much improved, plus my car stop grinding going into reverse. I bought my GT used, but I had bought a 2012 2.5i 6MT brand new so I had experience with the factory fill and Motul 300 Gear. Link to comment Share on other sites More sharing options...
garygbnj Posted July 24, 2019 Author Share Posted July 24, 2019 Where can you buy Extra MT 75-80w in a small quantity to fill the 6 mt trans? Link to comment Share on other sites More sharing options...
dgoodhue Posted July 24, 2019 Share Posted July 24, 2019 Where can you buy Extra MT 75-80w in a small quantity to fill the 6 mt trans? I would ask your local dealer. I read that the 2015+ WRX owners have had some luck doing that. Link to comment Share on other sites More sharing options...
garygbnj Posted July 24, 2019 Author Share Posted July 24, 2019 When I change the trans fluid should i change the diff also with the same Extra Mt. How much does the diff take? Link to comment Share on other sites More sharing options...
dgoodhue Posted July 24, 2019 Share Posted July 24, 2019 The front differential is within the 6MT. The rear differential fluid calls for 75w90 and it uses just under a 1 quart. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now