AutomobilesJapanese automaker pursues environmental measures beyond electric vehiclesMazda Motor and Nippon Express have launched a trial to use biodiesel fuel for truck-trailers that transport vehicles. (Source photos by Sae Kamae, Suzu Takahashi and Mazda Motor)YURIKA YONEDAJune 2, 2026 15:21 JSTTOKYO -- Mazda Motor said on Tuesday that it has begun a demonstration trial of vehicle-hauling truck-trailer running on biodiesel fuel in partnership with logistics company Nippon Express (NX), reflecting a broader push by Japanese automakers to reduce environmental impacts.