Welcome to greengreasemonkey.com

We are a Boston-based company that specializes in converting diesel vehicles to run on vegetable oil (a.k.a. “grease”), and we have fun doing it! When we started two years ago, we decided that our mission would be to make this technology accessible to as many people as possible. We have done our best to provide a low-cost, high-quality conversion kit and back it up with a commitment to customer service. We have made a lot of new friends along the way, and hope to continue growing as the demand for biofuels takes off.

We specialize in converting all types of diesel vehicles to run on vegetable oil and setting up small-scale biodiesel processors. Please visit our products and services pages to learn more about the ways greengreasemonkey.com can help you join the alternative energy revolution!


Patrick Keaney pouring waste vegetable oil into the tank of his 1984 VW Rabbit.
(Photo by Ben Falk)

 
   
An extra grease tank in the trunk is one of the minor modifications you will need in your grease car.
(Photo by Ben Falk)
   

Under the hood of an '84 VW Rabbit modified to run on grease!
(Photo by Boston.com)
 
Patrick Keaney and Jamie Merkle desplaying the converted rabbit onthe Boston Common.
(Photo by Boston.com)