Fuel & Oil Additives

Prime Guard PRIM00203 ULTRAPURE Diesel Exhaust Fluid (1 gallon) is a high-purity, ISO-compliant DEF formulated for diesel engines with Selective Catalytic Reduction (SCR) systems to support emissions control and reliable operation. Keeping an SCR-equipped diesel vehicle running cleanly depends on using a DEF that...

Hot Shot's Secret FR3 is a 16-ounce engine friction reducer and lubricant formulated to protect moving parts, quiet valve lifters, and help improve fuel economy for gasoline and diesel engines. Whether you maintain a daily driver, tow heavy loads, or care for off-road machines,...

DURA LUBE Engine Treatment is a 32 oz concentrated engine additive formulated to reduce internal friction and protect engine components for smoother, quieter operation. Designed for use with conventional, synthetic, or blended motor oils, DURA LUBE supplies a robust lubricating barrier that helps engines...

Lubegard Dr. Tranny Instant Shudder Fixx is a concentrated transmission additive designed to reduce torque converter shudder and improve shift smoothness when added directly to automatic transmission fluid. This two‑ounce twin pack contains a precision dose of Lubegard’s formula made for convenient, targeted treatment...

Hot Shot's Secret Everyday Diesel Treatment (EDT) is a 16 oz diesel additive formulated to clean injectors, boost cetane, improve lubricity, and protect fuel systems when added at every fill-up. EDT is a single-bottle fuel treatment designed for routine use in diesel vehicles, fleets,...

Shell Rotella ELC Extended Life Antifreeze + Coolant (Concentrate) is a carboxylate-based coolant engineered to protect engine cooling systems for extended service intervals up to 600,000 road miles or 12,000 off-road hours when used as directed. Designed for heavy-duty diesel, gasoline, and natural gas...

Hot Shot's Secret Original Stiction Eliminator is a 16 oz oil additive designed to clean, lubricate, and reduce stiction in gasoline and diesel engines to help restore performance and reduce wear. Stiction and sticky hydraulic lifters or HEUI injectors can sap engine responsiveness and...

STA-BIL In-Season Fuel System Treatment & Injector Cleaner is a 32 oz fuel additive that cleans injectors, removes water, and protects internal fuel-system components to help maintain efficient engine performance. Whether you drive daily, maintain seasonal equipment, or want to prevent fuel-related issues before...

zMAX 51-306 Transmission Formula is a 6 oz micro-lubricant treatment that cleans varnish, lubricates gears and seals, and helps restore smoother shifting in both automatic and manual transmissions (not for CVT). This concentrated transmission additive is designed to be mixed into existing transmission fluid...

SLICK 50 Engine Treatment is a ready-to-use 10W-30 motor oil blended with Slick 50 protection chemistry to reduce friction and protect engine surfaces under heat. Built as a drop-in engine treatment and oil combination, this SLICK 50 formula pairs lubricating oil with surface-conditioning additives...

Lucas Oil 11100 Engine Oil Stop Leak is a concentrated quart-size additive formulated to condition seals and o-rings to reduce and stop oil leaks without replacing the oil. Designed from a blend of premium base oils—both petroleum and synthetic—this stop leak additive targets hardened...

104+ Performance Max Octane Boost & Lead Substitute raises fuel octane, helps stop knock, and provides a lead replacement for older engines. If your engine hesitates, pings, or won’t accept lower-grade fuel without performance loss, this concentrated additive is formulated to help. 104+ Performance...

Lucas Oil 10966 Complete Fuel System Renewal Kit is an all-in-one maintenance set that cleans fuel lines, removes gum and varnish, and refreshes injectors and upper cylinders to help restore engine performance. This kit combines a concentrated fuel-system cleanser with multiple injector and upper-cylinder...

CamGuard 100% Oil Additive Concentrate is a concentrated motor oil treatment that reduces wear, cuts friction, prevents corrosion and deposits, and conditions seals to help stop leaks. CamGuard is formulated as a pure additive package designed to supplement both conventional and synthetic engine oils....

Lucas Oil 10019 Hydraulic Oil Booster and Stop Leak is a concentrated additive that reduces leaks, restores pressure, and conditions seals to improve hydraulic system performance. This concentrated hydraulic additive is formulated as an economical maintenance step for older or worn hydraulic systems. By...

Allstar Performance Cotton Candy Fuel Fragrance is a concentrated 4 oz scent additive designed to mix clear with most fuels to impart a cotton candy aroma to methanol, nitromethane, gasoline and 2-cycle blends. Give race fuel or model engine tanks a pleasant, recognizable scent...

Red Line 60202 Lead Substitute 12 oz protects valve seats in engines designed for leaded gasoline while cleaning carburetor deposits and fuel injectors. This concentrated 12-ounce formula is made to help older engines that were built for leaded fuels by cushioning valve seats and...

LIQUI MOLY Motor Oil Saver is a 300 ml oil additive formulated to renew rubber and plastic engine seals, reduce oil consumption, and curb blue smoke and external leaks. Designed for petrol and diesel engines, this concentrated additive restores elasticity to aged elastomeric seals...

Maxima 56901 15WT is a 1‑liter bottle of standard hydraulic fork oil designed to deliver stable damping, reduce friction and protect fork internals in front suspension systems. This 15 weight (15WT) fork oil from Maxima is blended from high‑quality base stocks and targeted additives...

Bar's Leaks 1415 Transmission Fix is a synthetic-blend additive designed to stop and prevent transmission leaks while restoring seal flexibility and improving shift feel. If your vehicle’s transmission is showing signs of leaking, slipping, hard shifts, or excess noise, this concentrated 11.5 oz treatment...

TriboTEX Nano Oil Additive is a synthetic-engine treatment that bonds to worn metal surfaces to build a diamond-like protective layer, quiet motors, and improve longevity when mixed into your engine oil. If your vehicle has high mileage, persistent engine noise, or you want to...

AT-205 ATP Re-Seal Leak Stopper is a concentrated formula that rejuvenates rubber seals and gaskets to reduce and stop oil leaks without disassembly. When rubber components in engines, transmissions, power steering units, differentials or hydraulic systems dry out and shrink, leaks follow. AT-205 ATP...

Maxima 56916 15WT Standard Hydraulic Fork Oil is a 16 oz suspension fluid engineered to reduce stiction, protect internal parts, and give consistent fork action across riding conditions. Designed from high-quality base oils and a targeted additive package, this 15-weight fork oil balances damping...

Lubegard 30901 Bio/Tech Engine Oil Protectant is a concentrated LXE-based treatment that supplements motor oil to reduce friction, limit wear, and help keep engine oil cooler and cleaner. Modern engines and today’s motor oils can leave protection gaps as additives deplete or were never...