Interesting SI tip

Going deep on a Range Rover right now and saw this little tip that made me scratch my head. Regardless I’m not going to clean the throttle plate, but it’s basically saying “the dirtier the better”

Going deep on a Range Rover right now and saw this little tip that made me scratch my head. Regardless I’m not going to clean the throttle plate, but it’s basically saying “the dirtier the better”