Yes, EnviroLogic and petroleum-based fluids can be mixed together. When mixing fluids in a hydraulic power system, environmental benefits of EnviroLogic are reduced in relative proportion to the amount of petroleum-based oil. We recommend draining the system of petroleum oil, flushing with appropriate EnviroLogic product and then refilling the system with recommended EnviroLogic product for maximization of environmental benefits.
EnviroLogic lubricants can be mixed and disposed of in the same waste oil drum as petroleum-based fluids.
We also offer reservoir and equipment decals to help minimize the risk of accidental system contamination.