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Caltex believes biofuels can play a role in reducing greenhouse gas emissions and providing long-term solutions to climate change.

That's why we are a leading supplier of biofuels to Australian motorists today and why we support policies made by Australian governments to increase the use of biofuels.

Over 400 Caltex-branded service stations currently supply biofuels blends to customers across eastern Australia. This includes Bio E10 Unleaded and Bio E-Flex blends. We also sell B5 and B20 to commercial customers in selected states.

Caltex Bio E10 Unleaded is a unique blend of Caltex unleaded petrol with up to 10% ethanol, while Bio E-Flex is a blend of up to 85% ethanol specifically designed for flex-fuel vehicles. Our biodiesel blends, B5 and B20 consist of diesel blended with biodiesel, which is made from used cooking oil, canola oil and tallow.

Ethanol is a renewable fuel made from molasses, wheat starch or sorghum. Ethanol helps reduce greenhouse gas emissions compared with petrol as it generates fewer emissions over its full lifecycle including the growing of crops, manufacturing the ethanol, transporting it to the pumps and using it in your vehicle. Pure ethanol is estimated by CSIRO to result in 17 to 51 percent less greenhouse gas emissions than petrol on a full lifecycle basis.

Caltex is committed to sourcing sustainably produced biofuels. Current biofuels production in Australia does not create any conflicts between food and fuel uses of crops, unlike some countries overseas. Australian biofuels producers use waste and by-products, or have developed co-production processes that generate both food and fuel.

Caltex prefers to support Australian farmers and industry, favouring biofuels produced from locally grown feedstocks. Caltex sources its ethanol from producers in NSW and Queensland. This ethanol is made from renewable sources such as waste starch from the processing of wheat, molasses from sugar production and sorghum, which is grown for ethanol manufacture and stock feed.

Caltex sources its biodiesel from producers in NSW, South Australia and Victoria. Australian biodiesel is made from used cooking oil, tallow and some crops such as canola and mustard seed. Caltex does not use biodiesel produced from palm oil feedstocks.

Most new and many older model vehicles can run on E10 without compromising the manufacturer's warranty or affecting vehicle durability or operation. Motorists can check their car's compatibility with E10 fuel at

Biofuels Legislation

Caltex is taking steps to meet the New South Wales Government's ethanol mandate, which currently requires the equivalent of 60% of the volume of total petrol sold in the state to be E10 (a 6% ethanol mandate).

A 2% biodiesel mandate has also been legislated.

In Queensland, the Government is introducing legislation requiring Retailers to offer E10 and comply with a 3% Ethanol mandate, plus a 0.5% Biodiesel mandate. Caltex will take appropriate steps to meet the requirements.