Scott Oncken is owner of Eco-Offroad LLC. He started playing with rusty old vehicles clear back in high school when his Chemistry teacher (owner of a 1946 Chevrolet truck) took him under his wing, or as his parents say, “corrupted him” to the ways of vintage vehicles. As he began tearing various vehicles apart, he also started to explore cost-efficient ways of powering them while obtaining the best fuel mileage possible — thus the blooming interest in diesel engines.

While his previous academic background is in Criminology and he is a retired United States Capital Police officer, his passion for vintage vehicles has never died. That is why, in 2005, he pursued his true calling and went back to school to become a trained professional mechanic. He chose a vocational school that covered all the areas of mechanics: chassis fabrication, sheet metal repair, trim/upholster and diesel engines, helping him to transition from a back yard mechanic to a professional.

With the birth of his first son, he found himself further evaluating what type of future would lie ahead for his children. Scott has always been in love with the great outdoors and exploration, and wanted to find a way to be able to enjoy those surroundings with his family while at the same time limiting the footprint he left behind. It was this idea that led him to start Eco-Offroad, LLC in 2008, to “recycle” an older unique suv/truck and make it environmentally friendly and drivable. Currently Eco-Offroad is focused on utilizing small Cummins diesel engines in vintage FJ45 Toyota Pickups and Series II Land Rovers. When these small engines are paired up with overdrive transmissions, they allow the vehicle to obtain 25 mpg; and with a little more playing, vehicles have been known to get better than 35 mpg while running on biodiesel and/or vegetable oil.

With our current changing environment, Scott believes it all goes back to what Rudolph Diesel, the inventor of the diesel engine, once wrote back in 1912:

“The use of vegetable oils for engine fuels may seem insignificant today, but such oils may become in the course of time as important as the petroleum and coal tar products of the present time.”

For more information, please contact:
Scott Oncken
Tel: 541-550-6300
Email: soncken AT gmail DOT com

Shop Hours/Location: By Appointment Only

Product Use

Modifications from stock configurations of any vehicle can cause the vehicle to handle unfavorably on or off the road. Altering your vehicle from stock may create dangerous conditions, which could cause serious bodily injury or death. The correct use and/or application is the responsibility of the purchaser and/or user. Under some conditions modifying and installation of certain aftermarket parts may void your original dealer warranty. By choosing our company to perform work on your vehicle that may alter it from stock configuration the individual hereby expressly assume all risks associated with any such modifications and use.


All Eco-Offroad products carry a six month warranty. However the warranty does not cover component failures due to abuse or neglect. Return shipping costs are the responsibility of the customer. If an item needs to be returned, please contact us prior to returning the item. No warranty is expressed or applied on used parts or parts from other manufacturers. Products from other manufacturers may carry their own specific warranty and we will do what we can to help facilitate the warranty process if the need should arrive. Workmanship Workmanship provided by Eco-Offroad carries a six month warranty. However, the warranty does not cover failures due to abuse or neglect. We reserve the right to refuse service to anyone.