STP Gasoline Octane Booster 5.25 oz - Case of 12 (78574)

STP's dual-action gasoline additive that raises the octane level of the fuel while cleaning buildup from the fuel intake. Helps restore lost power, reduce hard starting and engine run-on, and smooth a rough idle; one bottle treats a full tank.

• 5.25 oz bottle
• Treats one full tank
• Raises octane
• Helps prevent engine knock/run-on

Pack: Case of 12 x 5.25 oz
Part #: 78574
Brand: STP