Fuel & Oil Additives

K-Seal ST3501 Pour & Go Head Gasket Sealer (16 oz) is a concentrated coolant additive designed to repair blown head gaskets, hairline cracks in heads and porous engine blocks without disassembly. When a cooling system leak threatens engine function, the K-Seal ST3501 offers a...

XADO EX120 Automatic Transmission Fix is an ATF additive that restores worn gearbox surfaces, reduces slipping and shudder, and protects transmissions including CVT, Tiptronic and other automatic systems. Designed as a treatment to be mixed with automatic transmission fluid, XADO EX120 rebuilds and reinforces...

Hot Shot's Secret Diesel Extreme 32 oz is a concentrated diesel fuel additive that treats up to 80 gallons to clean injectors, remove deposits and help recover lost performance. Designed for diesel engines subject to heavy use, long idle periods, or fuel contamination, this...

Bar's Leaks OS-1 is a concentrated engine oil treatment that restores worn seals and reduces oil burning and external leaks in gasoline and diesel engines. If your vehicle is losing oil (but not more than about one quart per day) or showing blue exhaust,...

COMP Cams 153 Cam & Lifter Installation Lube is a heavy‑duty, purpose‑formulated lubricant designed to protect cam lobes, lifter bottoms, and distributor gears during the critical initial start‑up and break‑in period. When a new camshaft or lifters are installed, the first few minutes of...

Liqui Moly 20004 Hydraulic Lifter Additive (2 pack) is a concentrated formula designed to clean, protect, and reduce noise from hydraulic lifters and valvetrain components. Used as an oil treatment, this Liqui Moly additive targets deposits and sticking points inside hydraulic lifters, helping restore...

Lubegard Platinum Universal ATF Protectant is an additive that converts many standard Dexron/Mercon fluids into OEM-equivalent ATF while restoring and protecting transmission performance. Designed for shops and DIY owners who want dealer-level transmission behavior without stocking multiple specialty fluids, this 15 oz. bottle contains...

Hot Shot's Secret Everyday Diesel Treatment (EDT) 32 oz is an all-in-one diesel additive formulated to clean injectors, raise cetane, improve lubricity, and protect your fuel system when added at every fill-up. Everyday Diesel Treatment is a concentrated fuel additive designed for routine use...

G96 Products INC 1053 Synthetic CLP Gun Oil (4 oz) is a synthetic cleaner, lubricant, and preservative formulated to ease post-shooting cleanup, reduce wear, and protect metal and polymer firearm parts. Designed for shooters, armorers, and range-goers, this 4-ounce synthetic CLP blends cleaners and...

EZ PASS™ Emissions Treatment is a one-step gasoline additive designed to help clean the catalytic converter, oxygen sensors, combustion chamber, and fuel injectors when added to a full tank and driven at highway speed. This concentrated 16 fl. oz. bottle is formulated to circulate...

LIQUI MOLY Truck Series Oil Treatment (500 ml) is an engine oil additive with MoS2 that builds a durable lubricating film to reduce wear, lower friction and improve running reliability. This 500 ml bottle from LIQUI MOLY’s Truck Series (SKU 20256) is formulated with...

Slick 50 Recharged High Mileage Engine Treatment is a 15-ounce, ZDDP-enriched oil booster designed to restore protection, refresh seals, and reduce wear in higher-mileage gasoline engines. Designed as an engine oil supplement, this product arrives pre-blended in a 10W-30 carrier that is compatible with...

Lucas Oil 10599 Anti-Squawk/Anti-Shudder Additive is a 16‑ounce concentrated treatment designed to stop squawk noise at start‑up and reduce transmission shudder in automotive and agricultural gear systems. Engineered for situations where gear and transmission noises appear during initial engagement—especially in tractors, harvesters and some...

Klotz UpLon KL-107 is a synthetic TechniPlate upper-cylinder and fuel-pump lubricant formulated to protect 4-stroke engines running on gasoline, ethanol blends, methanol, and nitromethane. Designed for performance and longevity, this quart bottle of Klotz UpLon delivers lubrication where it matters most — the upper...

Lucas Oil 11032 Cetane Power Booster is a 64-ounce diesel additive that raises cetane up to six numbers while adding detergents and lubricants to clean injectors and protect high-pressure fuel systems. Designed for modern diesel engines, Lucas Cetane Power Booster blends cetane improvers, detergents...

Lubegard 30015 Engine Oil Protectant is an additive formulated to reduce low-speed pre-ignition (LSPI) and protect turbocharged gasoline engines by improving oil stability and component wear resistance. Modern turbocharged gasoline direct injection engines face a specific risk called low-speed pre-ignition (LSPI), which can create...

Liqui Moly LM 1005 Oil Leak Stop is an additive designed to rejuvenate rubber and plastic engine seals to stop leaks and lower oil consumption. LM 1005 is a concentrated 300 ml formula created for automotive engines to condition aging shaft seals, valve stem...

Lucas Oil 10130 Pure Synthetic Oil Stabilizer is a concentrated synthetic additive designed to reduce friction, stabilize oil performance, and protect engines, transmissions, and drivetrains under a wide range of conditions. This concentrated formula blends with synthetic oils to add a durable lubricating film...

Hot Shot's Secret EDT+ Winter Defense is a concentrated 16 oz diesel additive that prevents cold-weather gelling, disperses water, cleans injectors, and boosts lubricity and cetane for reliable winter starts. Cold weather can cripple diesel performance by forming wax crystals, trapping water, and clogging...

Hot Shot's Secret Everyday Diesel Treatment (EDT) is a 16 oz diesel additive formulated to boost cetane, clean injectors, improve fuel lubricity, and protect your fuel system from moisture and corrosion when used regularly. Everyday Diesel Treatment is created for drivers who want a...

Lucas Oil 16 oz Diesel Deep Clean is a fuel-additive treatment designed to reduce particulate buildup, lower exhaust backpressure, and cut the frequency of diesel particulate filter (DPF) regens. Diesel Deep Clean is a Lucas Oil formula created to help diesel engines operate with...

Hot Shot's Secret Diesel Extreme is a concentrated 16 oz diesel fuel system cleaner that removes deposits, disperses water, and boosts combustion quality for smoother starts and better acceleration. This advanced additive is formulated for modern diesel engines to address carbon buildup, fuel-related sludge,...

Lubegard 67010 CVT Recharge & Protect is a 10 fl. oz. concentrated additive engineered to restore CVT fluid performance, reduce noise and shudder, and protect belts, chains, pulleys and seals. Designed specifically for continuously variable transmissions (CVTs), this concentrated formula refreshes degraded fluid properties...

Lucas Oil LUC10011 Power Steering Stop Leak is a solvent-free, seal-renewing additive that helps condition worn power steering seals and reduce leaks while remaining compatible with all power steering fluids. Designed as a preventative and corrective maintenance product, this 1-quart formula uses a blend...