B2
A biodiesel-blend fuel comprising 2% biodiesel blended with petroleum diesel.

B5
A biodiesel-blend fuel comprising 5% biodiesel blended with petroleum diesel.

B20
A biodiesel-blend fuel comprising 20% biodiesel blended with petroleum diesel.

Biodiesel
Automotive fuel consisting of esterified vegetable oils such as rapeseed methyl ester and soybean methyl ester. It can be blended with petroleum diesel and used in diesel vehicles and equipment.

Biodiesel locator
A tool on the Caltex website showing you the services stations in the Caltex network where you can buy Caltex Bio E10 Unleaded and Caltex Bio B5 Diesel.

Biodiesel-blend fuel
A transport fuel made by blending a percentage of biodiesel (a biofuel) with diesel. It can be used in vehicles and equipment that normally operate on automotive diesel.

Bio E-Flex
Caltex Bio E-Flex is the same as a product known as E85 sold in the United States, Brazil and Europe. It contains up to 85 per cent ethanol blended with petrol. Ethanol is ethyl alcohol, the same type of alcohol found in alcoholic beverages. Caltex retails the fuel with a composition of between 70 and 85 per cent ethanol blended with regular petrol, depending on the time of year. This is similar to the seasonal variation in ethanol content overseas and complies with both the US and EU standards for E85.

Biofuels
Biofuel (also bio fuel) is fuel derived from plant material and/or animal feedstocks. The biofuels widely used for transport include ethanol and biodiesel.

Biomass crops
Biomass is biological material, such as corn, switchgrass, and oilseed crops, that can be converted into fuel.