Fuel & Oil Additives

K-100 Additive, Gas Treat/Stabilizer Qt. is a concentrated fuel treatment that bonds with free water, conditions fuel, and cleans fuel-system components to help engines start easier and run more efficiently. K-100 is a versatile, organic fuel conditioner formulated for gasoline and diesel equipment, including...

Rislone 4782 Diesel Exhaust Fluid Treatment Super Concentrate is a preventative additive designed to stop white crystalline deposits in SCR/DEF systems when added to DEF tanks or bulk containers at recommended dosages. Selective Catalytic Reduction (SCR) systems rely on urea-based Diesel Exhaust Fluid (DEF...

Stanadyne Performance Formula is a concentrated diesel fuel additive that cleans injectors, improves combustion, restores lubricity, and treats up to 120 gallons per two‑pint pack. Designed for modern diesel engines and formulated for ultra‑low sulfur diesel (ULSD) and biodiesel blends up to B20, this...

Liqui Moly ATF Additive is a 250 ml oil-treatment concentrate designed to soften and rejuvenate seals, reduce leaks, quiet power-steering noise and improve shifting in automatic transmissions. This concentrated formula is mixed into automatic transmission fluid or power-steering oil to address hardened or brittle...

Hot Shot's Secret FR3 Friction Reducer is a nano-lubricant designed to reduce metal-to-metal resistance, protect moving parts, and improve equipment smoothness from the first application. FR3 uses advanced nano-lubricant technology to penetrate metal surfaces and form a protective layer that reduces friction and helps...

BIOBOR JF is a concentrated diesel fuel biocide and lubricity supplement that eliminates fuel tank microbes, reduces corrosion, and restores lubrication to protect injectors and pumps. Developed for aviation and adopted by diesel engine manufacturers, BIOBOR JF has a long history of stopping microbial...

Red Line WaterWetter is a concentrated cooling-system additive that boosts water's ability to transfer heat, improving engine cooling performance when used with water or glycol antifreeze. This concentrated 12-ounce bottle (sold as a convenient 2-pack) is formulated to reduce the surface tension of coolant,...

STA-BIL Diesel Fuel Stabilizer 32 oz is a concentrated diesel additive that preserves fuel quality for up to 12 months while cleaning and lubricating the fuel system. Keeping diesel fuel stable during storage and seasonal downtime prevents costly starting problems, clogged injectors, and degraded...

Hot Shot's Secret LX4 Lubricity Extreme is a 32 oz fuel additive engineered to restore and increase fuel lubricity, protecting pumps, injectors and upper-cylinder components in gasoline and diesel engines. Modern low-sulfur fuels and ethanol blends can reduce natural lubrication that protects critical fuel-system...

Hot Shot's Secret Original Stiction Eliminator is a 32 oz oil additive formulated to free sticky lifters and improve engine performance by reducing friction and cleaning deposits. Designed for gasoline and diesel engines, this concentrated formula targets stiction, varnish, and carbon buildup that can...

Power Service Diesel 911 (64 oz) is a winter emergency diesel treatment that reliquefies gelled fuel and de-ices frozen fuel filters to restore fuel flow and get engines running again. When cold weather causes diesel to gel or fuel filters to ice over, vehicles...

Hot Shot's Secret EDT+ Winter Defense is a concentrated 7-in-1 diesel winter additive that prevents gelling, improves cold starts, disperses water and cleans injectors down to extreme temperatures. Designed for cold-weather protection, this 32 oz bottle of Hot Shot's Secret EDT+ Winter Defense treats...

Yamalube Ring Free PLUS is a 12-ounce marine fuel additive that cleans fuel injectors, carburetors, intake ports and combustion chambers while helping protect fuel system metals from ethanol sulfate salt corrosion. Designed specifically for marine engines, this Yamaha-formulated fuel additive combines deposit removal and...

LIQUI MOLY Cera Tec is a ceramic-based oil additive that lowers friction and protects engine parts when mixed into motor oil. Designed for petrol and diesel engines, Cera Tec introduces ceramic compounds into the lubrication film to reduce metal-to-metal contact and slow wear. This...

Archoil AR6400-D is a concentrated 12 oz diesel fuel system cleaner engineered to dissolve injector, turbo, and DPF-related deposits to restore performance and smoother combustion. When diesel drivability, throttle response or regeneration frequency start to suffer, targeted chemical cleaning can recover lost performance without...

Howes Diesel Treat 32-Ounce is a petroleum-based anti-gel and diesel lubricator that prevents gelling, adds lubricity, removes water, and helps reduce injector deposits in diesel fuel systems. When diesel temperatures drop, fuel can thicken, clog filters, and reduce engine performance. Howes Diesel Treat combines...

LIQUII MOLY 20004 Hydraulic Lifter Additive is a 300 ml formula (sold as a 2-pack) designed to quiet noisy hydraulic lifters, clean valve bores, and improve oil lubrication when added to engine oil. This concentrated additive treats hydraulic tappet noise, helps remove deposits from...

Lubegard 40902 Bio/Tech Engine Oil Protectant (32 oz) is an LXE-based concentrate that supplements motor oil to reduce friction, limit wear and help keep oil cooler across gasoline and diesel engines. Modern engines demand more from oil than many stock formulations provide. Lubegard's Engine...

S S100 19200A-02 Engine Brightener is an aerosol formula that restores faded, gray motorcycle engines to a deep factory-black appearance with a fine mist spray for even coverage. If your bike's engine has lost its original black finish and looks weathered or gray, this...

XADO ATOMEX Oil Additive Stop Leak (250 ml) is a concentrated treatment that restores rubber seals and gaskets to reduce and stop engine oil leaks without disassembly. If your high-mileage car or motorcycle is losing oil from deteriorated seals or a rear main leak,...

TruFuel 4-Cycle Ethanol-Free Fuel is a pre-blended, ready-to-use 50:1 gasoline-and-oil fuel designed for portable 4-cycle, air-cooled outdoor power equipment, supplied here as a convenient 32 oz pack of two. Designed to eliminate the guesswork of mixing separate oil and gas, this ethanol-free formula provides...

Liqui Moly Diesel Purge Injection Cleaner is a concentrated 500 ml treatment (sold as a set of 2) designed to clean and remove deposits from diesel injectors and the combustion chamber without dismantling components. This professional-grade diesel additive from Liqui Moly is formulated to...

RaceGas 100032 is a concentrated fuel treatment that raises pump gasoline to an equivalent 100–105 octane race fuel, improving knock resistance and consistent combustion for high-performance engines. RaceGas 100032 Race Fuel Concentrate is a USA-made, laboratory-proven additive designed for racers, tuners, and performance enthusiasts...

BOOSTane Marine is a 32 fl. oz. fuel treatment that raises gasoline octane (up to 116), stabilizes ethanol-blended marine fuel, and adds cleaning and lubrication for better engine operation. Designed specifically for marine engines, BOOSTane Marine addresses issues common to boats, personal watercraft, and...

Johnsen's 4688-8 Octane Booster is a concentrated 6 oz. additive sold in a 12-pack to raise fuel octane and help reduce engine knock in gasoline-powered vehicles. This 12-pack of Johnsen's octane boosters delivers a convenient, shelf-ready supply of small-dose performance additive for motorists, hobbyists,...

Ethanol Shield MARINE Fuel Stabilizer & Preservative is a marine-specific fuel treatment sold in a 2-pack of 24 oz bottles that cleans injectors, helps remove water, and preserves up to 480 gallons of gasoline when used as directed. Designed from a decade-plus legacy in...

QuickSilver Quickstor Fuel Treatment and Stabilizer (32 oz) protects gasoline engines and preserves fuel for extended storage up to one year per dose. Quickstor is a concentrated fuel conditioner formulated to keep gasoline — including ethanol blends — stable and engine-ready during long storage...

Rislone Ring Seal Smoke Repair is a concentrated engine oil additive designed to reduce blue exhaust smoke, lower oil consumption, and improve sealing on worn piston rings and cylinders. If your vehicle is producing blue or gray exhaust, or you notice higher oil use...

CamGuard is a concentrated oil additive that reduces corrosion, wear, deposits and seal degradation in piston aircraft engines when mixed into aviation lubricants. Built as a 100% active supplement, ASL CamGuard blends 11 targeted performance chemistries to improve protection and cleanliness across mineral, semi-synthetic...

ACDelco Gold 10-4023 (19286292) Diesel Exhaust Fluid is a high-purity urea solution sold as two 2.5-gallon containers, formulated to support Selective Catalytic Reduction (SCR) systems by helping convert NOx into harmless nitrogen and water. Designed for modern diesel engines equipped with SCR emissions control,...

EZ PASS™ Emissions Treatment is a one-step gasoline additive that helps clean catalytic converters, oxygen sensors, injectors, and combustion chambers to support emissions system efficiency. This concentrated 16 fl. oz. formula is designed to be poured into a full tank of gasoline and used...

ERRECOM Extreme A/C Leak Stop is a compact, polymer-free aerosol that repairs common refrigerant leaks in metal and rubber vehicle A/C components while adding UV dye for leak detection. Designed for quick, on-the-spot A/C system recovery, this 3.6 oz can from ERRECOM injects a...

TSI Supercool 48663-32D is a POE 68 viscosity compressor lubricant with UV dye formulated for 1234yf electric and hybrid vehicle air conditioning systems. This synthetic polyol ester (POE) oil is designed for modern automotive A/C systems that use R-1234yf refrigerant, including electric and hybrid...

STAR BRITE Star TRON Enzyme Formula is a concentrated, enzyme-based fuel tank cleaner that breaks down sludge and varnish in both gasoline and diesel tanks for cleaner fuel systems. Star TRON uses biologically derived enzymes to target and break apart organic fuel deposits, making...

BG EPR Engine Performance Restoration is a concentrated engine cleaner that softens and dissolves piston-ring and combustion-chamber deposits to help restore compression, fuel economy and power. Modern engines run hotter and oil-change intervals are longer, which encourages buildup of varnish, sludge and hard fuel...

Star Tron Enzyme Fuel Treatment is a concentrated gasoline additive that stabilizes fuel, combats ethanol-related problems, and cleans fuel systems so engines start easier and run more reliably. Whether your machine sits through winter storage or sees daily use, Star Tron's enzyme-based formula is...

Lucas Oil Hydraulic Oil Booster/STO is an additive that restores hydraulic pressure, helps stop seal leaks, reduces operating temperatures, and conditions components to extend system life. Designed as an economical maintenance and repair aid, Hydraulic Oil Booster/STO works in a wide range of hydraulic...

Stanadyne Performance Formula is a concentrated diesel fuel additive that cleans injectors, raises cetane, restores power and improves fuel economy when added to diesel fuel. Designed for modern diesel engines running ultra-low sulfur diesel (ULSD) and biodiesel blends up to B20, this four-pack of...

BG 44K® Platinum™ is a next-generation gasoline fuel-system additive formulated to remove carbon deposits across modern GDI systems, restore injector flow, and improve drivability. BG’s latest BG 44K Platinum builds on decades of aftermarket fuel-system research to target the stubborn carbon and deposit challenges...

ATP Automotive AT-205 Re-Seal is a concentrated, non-petroleum formula that rejuvenates dried or shrinking rubber seals and gaskets to help stop fluid leaks in engines, transmissions, power steering and hydraulic systems. When rubber seals age they can harden, shrink, and allow oil or fluid...

Marvel Mystery Oil Original Motor Treatment is a versatile 32 oz engine additive that cleans, lubricates, and protects gasoline and diesel engines when added to fuel or oil. Designed and trusted for over a century, this Original Motor Treatment combines fuel-system cleaning with a...

Marvel Mystery Oil Original Motor Treatment is a dual-purpose fuel and oil additive that cleans deposits, adds a protective lubricating film, and helps engines run smoother. Made with a century-old formula, this 16 oz bottle (sold here as a convenient pack of six) works...

REV X Zinc ZDDP Oil Additive is a concentrated 2 fl. oz. treatment formulated to boost zinc and phosphorus levels for protecting high-friction engine parts when added to motor oil. This five-pack of compact bottles supplies targeted anti-wear chemistry for engines that need extra...

Red Line SI-1 Complete Fuel System Cleaner is a concentrated gasoline additive formulated to remove injector, carburetor, valve and combustion chamber deposits while helping prevent fuel-system corrosion. SI-1 is a two-bottle supply of Red Line's concentrated fuel treatment designed for use at each tank...

Gumout Regane Complete Fuel System Cleaner is a concentrated 6 oz treatment that removes carbon deposits, conditions fuel against ethanol corrosion, and restores fuel-system performance in a single tank fill. If your engine feels sluggish, mileage has slipped, or you want an easy maintenance...

STA-BIL Storage Fuel Stabilizer 4 oz (8-Pack) is a concentrated additive that preserves gasoline for up to 24 months and protects engines and fuel systems during storage. When you put seasonal vehicles, lawn equipment, or emergency fuel into storage, untreated gasoline can break down,...

Lubegard 63032 Platinum Universal ATF Protectant is a 32 oz additive that converts many Dexron/Mercon ATFs to dealer-equivalent OEM ATF performance while restoring and protecting transmission components. Designed for professional shops and informed vehicle owners, this Lubegard formula uses LXE and Synergol TMS technologies...

Gold Eagle 1 Gallon Fuel Stabilizer preserves gasoline quality and removes gum and varnish to help gasoline engines start reliably after storage. This one-gallon formula is designed for use in gasoline-powered engines to extend fuel life, dissolve fuel system deposits, and improve overall fuel...

Duda Energy 16 oz Hammonds Biobor JF is a concentrated microbicide designed to eliminate microbial contamination and control sludge and slime in diesel, biodiesel, kerosene and heating oil tanks. Fuel stored for extended periods is vulnerable to bacteria, fungi and slime that form at...

Quicksilver Quickare Fuel Treatment 32 oz is a multi‑use fuel additive designed to clean fuel systems, prevent ethanol-related issues, and help maintain reliable engine performance across 2‑ and 4‑cycle gasoline engines. Whether you run a boat, motorcycle, lawn mower or snowblower, modern gasoline—especially blends...