NOTE: Insufficient cleaning of the spark plug may lead to spark plug failure in a very short period of time.

注：如对于火花塞清洁不彻底可能会导致极短时间的打火失败。

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Red Bull did not test the constructors' championship-winning RB6 in the first winter testing session of 2010 and suffered early-season problems when Sebastian Vettel lost the lead at the Bahrain Grand Prix because of a spark plug problem, finishing fourth as a result, before retiring in the following race in Australia with a wheel problem.

BBC: McLaren deny missing winter testing session is risky