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International Automotive Technicians Network
Re: Mineral oil for hydraulic brake system
Posted to HD/Fleet Forum on 6/18/2020

The specification should be easy to find if you have a manual. I agree with use of what is called for by manufacturer

Some years ago, I worked with haul trucks with hydraulic systems equipped using synthetic SAE10 oil. It seemed to work fine, even in -30C we... Login to read more.