Description
Product Overview
Bar’s Leaks Octane Booster (Model 4747-12PK) is a high‑concentration MMT fuel additive designed to restore lost horsepower and eliminate engine knock caused by low‑quality gasoline. Packaged in a 12‑pack of 16‑ounce bottles, each unit treats up to 20 gallons of fuel, delivering an octane increase of over 20 points. The formula is compatible with all unleaded gasoline types, including E10, E15, E85, and racing fuels, and is safe for catalytic converters, oxygen sensors, and both fuel‑injected and carbureted engines. Dimensions are 7 × 6 × 10 inches, weighing 4.77 lb per bottle.
Usage
Designed for everyday drivers, performance enthusiasts, and fleet operators, this octane booster can be added to any gas tank—standard, capless, or obstructed. Simply pour the recommended amount into the tank before refueling to ensure thorough mixing. It works equally well in street‑legal vehicles, turbocharged, supercharged, and racing engines, providing smoother acceleration and reduced pinging during high‑load conditions. 
Why Choose Us
Bar’s Leaks leverages the highest street‑legal concentration of real MMT, a proven anti‑knock agent, to deliver measurable performance gains. Our rigorous quality control ensures each batch meets strict automotive standards, guaranteeing no damage to emissions systems. With a 4.7‑star rating from over 600 verified customers, the product consistently ranks among the top octane boosters on the market, reflecting reliability and driver satisfaction.
Key Features
- Boosts octane by 20+ points, restoring horsepower and torque.
- Highest legal MMT concentration for street use.
- Compatible with all unleaded fuels, including E10‑E85 blends.
- Safe for catalytic converters, oxygen sensors, and all engine types.
- Treats up to 20 gallons per bottle; works in standard, capless, and obstructed tanks.
FAQ
How much booster should I add per tank?
For a standard 12‑gallon tank, add one full bottle (16 oz). Adjust proportionally for larger or smaller tanks.
Will this product void my vehicle warranty?
No. Bar’s Leaks Octane Booster is formulated to be safe for all emissions components and does not violate warranty terms when used as directed.
Can I use this with ethanol‑rich fuels like E85?
Yes, the formula is fully compatible with E10, E15, E85, and other ethanol blends without loss of effectiveness.
Is it safe for diesel engines?
This product is specifically designed for gasoline engines and should not be used in diesel applications.
How often should I use the booster?
Use it whenever you notice reduced performance or engine knock, typically every 1,000‑1,500 miles for optimal results.
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