Maybe not an optimal gear to be dropping 5K on, but it sounds like a worn clutch to me. I'd just keep driving it until it becomes more of a problem. The risk is going too far and needing a flywheel - but then, you may need one anyway.
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Paul B. Anders / Phoenix, AZ
1970 Porsche 914 / 2003 Porsche Boxster / 2009 Honda Fit Sport Auto
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