Video: Rotax 912iS Efficiency — Better than Claimed

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Key Takeaways:

  • Rotax's 912iS engine was initially claimed to be 20% more fuel efficient than previous 100hp models.
  • New testing has revealed that the engine's actual fuel efficiency surpasses its original claims.
  • The 912iS engine may improve fuel efficiency by up to 30%, according to a recent report by Paul Bertorelli.
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When Rotax introduced its high-tech 912iS a year ago, it claimed that the engine would be about 20 percent more fuel efficient than previous 100hp models. But new testing done by the company last year reveals that those claims fell short of the engine’s actual efficiency. In this video shot at Aero in Friedrichshafen, Germany last week, Paul Bertorelli reports that the 912iS may improve fuel efficiency by up to 30 percent.

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