A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
Joe Gibbs Driven Power Steering Fluid
A fully synthetic oil, Power Steering Fluid is used everywhere from Watkins Glen to Daytona. Designed specifically for racing power steering systems, PSF delivers improved thermal stability across a wide range of operating temperature. PSF's thermal stability provides more consistent steering asist, which improves repeatability. PSF's high temperature foam protection also lowers steering system temperatures compared to conventional steering fluids.
A fully synthetic formula power steering fluid
Provides improved thermal stability for less pressure drop
Offers high temperature foam resistance for better cooling