STP® 4-Cylinder
High-Stress Lubrication for Small Engines
Use Every Oil Change
Today's smaller engines work harder and run hotter than six- and eight-cylinder engines. This can cause motor oil breakdown. STP® Four-Cylinder Oil Treatment provides high-stress lubrication protection for today's smaller engines. Specially formulated to fight metal-to-metal friction by providing a thicker cushion between moving parts.
STP® 4-Cylinder Oil Treatment fights friction to help:
- Resist motor oil breakdown
- Counteract oil thinning by boosting viscosity
- Increase anti-wear protection
Try the complete line of STP® Oil Additive products: Oil Treatment, Engine Stop Leak and Smoke Treatment.