Thread: 2019 STi Thread
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Old 10-31-2020, 12:19 AM   #199
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Member#: 511103
Join Date: Jan 2020
Chapter/Region: MWSOC
Location: SE Michigan
2021 WRX STI


Originally Posted by Subarudunk View Post
Anyone having trans issues with their STI? My 19 STI with 3k miles is grinding second gear. I brought it into Subaru and they were able to replicate the issue. They have not begun digging into it, but did mention they have seen the same issue with several cars.

I had this issue with my 2019 STI. During fall & winter mine would grind 2nd gear. Around 6,500 miles. I had a local shop perform a full transmission flush with Motul Gear 300 75-W90 & immediately the grinding went away. When shifting even during WOT it is much smoother.
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