I thought they used water under pressure to remove oils/fuels from the rock. I am ignorant as to the reason why they would use more diesel fuel?
As a long time diesel owner...the main increase in fuel cost was the when high sulfur diesel was switch to LSD and then to ULSD this happened back in 03-04 time frame and recalled the local dump truckers going on strike due to the sudden increase in prices at the pump.
As a long time diesel owner...the main increase in fuel cost was the when high sulfur diesel was switch to LSD and then to ULSD this happened back in 03-04 time frame and recalled the local dump truckers going on strike due to the sudden increase in prices at the pump.