Get your semi truck Ready for the Road Ahead with smooth and reliable steering, with the Autoguard Power Steering Fluid. This replacement fluid works to transmit hydraulic pressure from the steering wheel to the steering mechanism, allowing operators to efficiently change directions without excessive wheel play. Low fluid levels or a potential leak can often show symptoms such as increased steering effort, vibrations, warning lights, and other similar types of issues. FleetPride is your First Click in Heavy Duty .