Gull Force 10

{{Use dmy dates|date=April 2022}}

Gull Force 10 is a brand of E10, 98 octane fuel marketed by Gull Petroleum in New Zealand, consisting of 10% bioethanol and 90% gasoline. The fuel was the first biofuel product to go on sale in the country, and was launched by Prime Minister Helen Clark on August 1, 2007.[http://www.gull.co.nz/media/Pr01082007.pdf Gull first to launch biofuel to Kiwi motorists] {{Webarchive|url=https://web.archive.org/web/20070928055552/http://www.gull.co.nz/media/Pr01082007.pdf |date=2007-09-28 }}, Gull Petroleum, published 2007-08-01, accessed 2007-08-03

The bioethanol is produced by Fonterra from the fermentation of whey, a by-product of New Zealand's large dairy industry. Trials of the fuel have been taking place in New Zealand since 2004,[http://www.scoop.co.nz/stories/BU0409/S00032.htm Fonterra Explores Alternative Fuel], Scoop, published 2004-09-03, accessed 2007-08-03 although other countries have been using similar fuels for many years.[https://www.theguardian.com/environment/2007/mar/31/motoring.money An old fuel for the future: bio-ethanol offers a way forward], The Guardian, published 2007-03-31, accessed 2007-08-03 Under the government's Biofuels Sales Obligation, announced on February 13, 2007, oil companies must sell 3.4% biofuels (by energy content) by 2012.[http://www.eeca.govt.nz/news/energywise-news/april-2007/on-the-road-with-biofuels.htm On the road with biofuels] {{Webarchive|url=https://web.archive.org/web/20070712104108/http://www.eeca.govt.nz/news/energywise-news/april-2007/on-the-road-with-biofuels.htm |date=2007-07-12 }}, Energy Efficiency and Conservation Authority, published April 2007, accessed 2007-08-03 This requirement was rescinded by the National-led government.