"Unleaded gas" refers to a type of fuel for vehicles that does not contain a harmful substance called lead. It is safer for the environment and for people's health. Full definition
The price of regular unleaded gas dropped in December for the fourth consecutive month, according to the AAA Clubs of Florida. (articles.orlandosentinel.com)
Examples of this are catalytic converters, anti-ping with unleaded gas technology and CFC replacements. (illconsidered.blogspot.ru)
The two - seater Transition cruises at 100 mph (in the air), runs on premium unleaded gas and has a 400 - mile range. (cnbc.com)