Alternative fuels studied within Auto-Oil II included gaseous fuels (compressed natural gas, liquid petroleum gas and dimethyl ether), biofuels (biodiesel and bioethanol), and water-diesel emulsions.
Alternatieve brandstoffen die binnen Auto-Olie II werden bestudeerd waren onder meer gasvormige brandstoffen (gecomprimeerd aardgas, vloeibaar petroleumgas, dimethylether), biobrandstoffen (biodiesel en bio-ethanol), en water-dieselemulsies.