Assertion: engine's power output | /r/HasProperty | achieved by previous 3.0 litre v10 engines
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text: The next period of significant V8 usage in Formula One was from 2006 to 2013, when the rules mandated use of 2.4 L (146 cu in) naturally aspirated V8 engines (in order to reduce the power outputs being achieved by the previous 3.0 litre V10 engines).