Responding to comments on my previous video, I had to check this for myself Do emissions increase or decrease at 20mph compared to 30mph? I try to find out. watch my full video on 20mph speed limits here Support my content from as little as £3 at https://ko-fi.com/browncarguy Follow all my channels https://linktr.ee/browncarguy Big Thanks … Continue reading 20mph – Does it Increase Emissions Compared to 30mph?