Reading the latest Car and Driver, I stumbled on a short write-up titled "Not Just for Breakfast,", which reports on a new Yokohama product. It appears that this tire is "infused" with orange oil! Wow! Upon reading, I discovered that this oil helps the rubber compound to be more holistic and, when worn out, the tire is better disposed of than traditional tires.
This reading made me think of the Yokohama tire I use on my 2001 Range Rover 4.6SE: the Yokohama Geolandar A/T-S. I was a bit disappointed after checking on my tire on our website. I realized that this tire was not infused with orange oil! But, I can tell you that it's been a good tire for the ride and use I have of this car. I'll recommend it to all Range Rover drivers, anytime.