 two-thirds cleaner than car two decades prior so use that clean that car from the 60s the old muscle cars and stuff like that they were just just awful on efficiency always you know could smell raw fuel remember the old diesel trucks and they would roll coal yep and everybody'd be like oh my god you're destroying air that's carbon most fertile molecule in the universe but don't don't worry about that um but but i will tell you man um the efficiency nowadays in these