Why does oil change shop change my Toyota transmission fluid at next due oil change? ?
I change oil every three thousands miles. Last time when I do oil change, they did transmission oil change too. I went back there after my three thousands miles being used up. They change transmission oil also but no charge this time.
Why they did that? Last time they change transmission fluid was castrol oil for Toyota. But when I go back second time at three thousands miles later, they took that out and put Toyota only and made by Toyota oil only into my car transmission at 3000 miles later.
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