Gazza1379 Posted November 26, 2022 Share Posted November 26, 2022 Hi so I've got a 3rd to 4th crunch, only happens at high revs. I've heard castrol transmax 75w 90 is really good and helps with the crunch. Anybody used this and offer any options on transmax or maybe something else? Car is 2003 impreza wrx on 124k. Thanks Quote Link to comment Share on other sites More sharing options...
Tidgy Posted November 28, 2022 Share Posted November 28, 2022 Pretty common issue as the syncro's wear. you can try so different oil, but really its only a temporary fix. Quote Link to comment Share on other sites More sharing options...
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