I am told not necessary until 60,000
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2009 Hyundai Sonata
Question: Is trans flush or fuel injector service necessary at 32000 miles?
Answer #1Tyreguy September 16, 2011, 07:18Master
As far as the transmission is concerned, check your owners manual. It will tell you under the service schedule if thats required at that mileage. Without looking, it shouldn't be needing it yet. Fuel injection service is only really needed at high mileage intervals and/or when part of a tune-up.
Granted if you consistantly use poor/low quality fuels, occasional system cleaning could be a good thing.