STP® Power Steering Fluid & Stop Leak

Steering fluid. STP® Power Steering Fluid & Stop Leak bottle

Protects against wear and saves fluid with a unique 2-in-1 formula.

STP® Power Steering Fluid & Stop Leak is specially formulated to stop or reduce fluid loss caused by seals which leak due to wear or shrinkage (not for use with broken or scored seals). One treatment helps stop most wear or shrinkage levels.* Can be used instead of regular power steering fluid as preventive maintenance. Compatible with all approved power steering fluids.


  • Revitalizes dried, hardened and shrunken seals with a special conditioner
  • Helps protect against wear and pump breakdown

Usage Frequency

*To stop a leak or reduce fluid loss, use a minimum of 7oz. per 1 quart power steering system — see owner’s manual for capacity. Additional treatments may be needed.

Take Note!

If leak persists or increases after continued treatments, consult an auto mechanic.