Store Hours 8AM – 6PM Mon-Sat (closed Sunday)

7 ACRES OF SAVINGS

JUST 10 MINUTES SOUTH OF SPRINGFIELD, MO

PROUDLY SERVING SOUTHWEST MISSOURI FOR 125 YEARS

STP Gasoline Octane Booster 5.25 oz

$6.54

SKU: 8306219 Categories: , ,

In stock

  • Free Store Pickup

    Available for MO, AR, KS, OK addresses at checkout

  • Shipping


    Ships to lower 48 (excl. CA) on eligible items.

  • Local Delivery

    Order first; we’ll call you to schedule a time

  • Shop In-Store

    Open Mon–Sat, 8 am–6 pm for all items.

STP Gasoline Octane Booster is a practical solution for restoring peak performance to engines that are suffering from annoying pings and knocks. When you are running a high-compression engine or using a lower grade of fuel, this formula helps stabilize the combustion process by increasing the octane rating of your gasoline. It works to clean the fuel intake system while you drive, which is particularly helpful for keeping your injectors and valves free from power-robbing deposits. Adding this bottle to your tank during your next fill-up provides a smoother idle and more consistent acceleration, making it a reliable choice for both your daily driver and your seasonal power equipment.

Key Features of STP Gasoline Octane Booster

Two-in-one formula boosts octane levels while simultaneously cleaning the fuel intake system
Specialized additives work to dissolve harmful carbon deposits on fuel injectors
Helps eliminate engine hesitation and "run-on" caused by low-quality gasoline
Safe for use in all gasoline engines including those with turbochargers and catalytic converters
Compatible with cap-less fuel systems for easy pouring without specialized funnels
Reduces the audible "knocking" and "pinging" that can lead to long-term engine wear
Regular use helps maintain optimal fuel economy by keeping the combustion chamber clean
Compact bottle size is perfectly measured to treat up to 21 gallons of fuel in one application

Additional Information

Brand: STP
Product Type: Fuel Additive
Model:
Product Use: Increasing octane and cleaning fuel systems
Size: 5.25 oz
Material: Kerosene and jet fuel-based cleaning agents
Height:
Length:
Width:

For the best results, pour the entire bottle into your tank when it is nearly empty, then immediately fill the tank with gasoline to ensure the booster mixes thoroughly. If you have a classic car or a small engine that sits for long periods, this booster can help compensate for the natural degradation of fuel quality over time. It is a smart move to use this before a long highway trip, as the consistent heat and flow will allow the cleaning agents to work most effectively on your intake valves.

SUB CAT RELATED