The owner's manual states that full-throttle starts should be avoided for the first 600 miles, and this seems to be the standard verbiage for all Honda vehicles. However, this appears to be misapplied to the Clarity, where the ICE may be operated infrequently. I have no idea when the ICE in our Clarity will see 600 miles of operation. It could be a year or more. I guess I won't start racing anytime soon.