Fuel & Oil Additives

REV-X Zinc ZDDP Oil Additive is a concentrated zinc/phosphorus formula that supplements engine oil to form a protective anti-wear layer at high-friction contact points. This 5-pack of 2 fl. oz. bottles delivers a proven ZDDP boost designed for engines that need extra surface protection,...

Hot Shot's Secret Everyday Diesel Treatment (EDT) is a concentrated diesel fuel additive formulated to clean injectors, boost cetane, improve fuel lubricity, and protect fuel systems when added at each fill-up. Everyday Diesel Treatment is a daily-use fuel additive sold here as a convenient...

EZ PASS Emissions Treatment is a ready-to-use fuel additive designed to help clean the catalytic converter, oxygen sensors, combustion chamber, and fuel injectors when added to a full tank. This concentrated 16 fl. oz. formula works through the fuel system as you drive, targeting...

Rislone Ring Seal Smoke Repair is a concentrated oil additive that helps reduce blue exhaust smoke, limit oil burning, and improve piston and ring sealing in worn engines. If your vehicle is showing blue or gray exhaust, fouled spark plugs, or elevated oil consumption,...

CamGuard Oil Additive by ASL is a concentrated, 100% active supplement designed to reduce corrosion, wear, deposits and seal deterioration in piston aircraft engines. Engine preservation in aircraft requires targeted chemistry that works with existing lubricants. CamGuard is formulated with 11 high-performance additives to...

TSI Supercool 48663-32D is a POE 68 compressor oil with UV dye formulated for 1234yf electric and hybrid vehicle A/C systems, sold as a 1-quart pack for leak detection and system compatibility. This synthetic polyol ester (POE) lubricant is engineered for modern automotive air...

Hot Shot's Secret Original Stiction Eliminator is a 32 oz oil additive formulated to reduce internal friction, help free sticky lifters, and improve engine compression without changing the base oil. This concentrated formula is designed for gasoline and some diesel engines to target varnish,...

Hot Shot's Secret EDT+ Winter Defense is a concentrated 7-in-1 diesel additive that prevents fuel gelling, disperses water, and improves lubricity and cetane for reliable cold-start performance. When temperatures fall, diesel can thicken and form wax crystals that clog filters and stop engines. Hot...

Liqui Moly Diesel Purge Injection Cleaner is a concentrated 500 ml formula (sold as a set of 2) designed to clean diesel injector and combustion deposits without disassembly. This concentrated diesel injection cleaner from Liqui Moly targets soot, lacquer and other combustion residues that...

XADO ATOMEX Oil Additive Stop Leak is a 250 ml treatment formulated to rejuvenate rubber seals and gaskets, reduce engine oil leaks, and improve sealing performance in high‑mileage or leaking engines. Designed for cars, motorcycles and marine engines, this concentrated formula works alongside engine...

LIQUI MOLY Cera Tec is a ceramic-based oil additive that reduces friction and wear in petrol and diesel engines, improving smoothness and helping lower fuel use when mixed into engine oil. Designed as a high-technology supplement for motor oils, Cera Tec introduces microscopic ceramic...

Lubegard 40902 Bio/Tech Engine Oil Protectant is an LXE-based concentrate that supplements motor oil to reduce friction, protect components, and extend oil life in gasoline and diesel engines. Designed for modern engines and compatible with all major motor oil specifications, this 32 oz bottle...

Hot Shot's Secret FR3 is a nano-lubricant friction reducer formulated to reduce internal resistance and provide durable wear protection for automotive and industrial components. Engineered for engines, transmissions, gearboxes and mechanical assemblies, FR3 Friction Reducer uses advanced nano-lubrication to improve moving-part efficiency. The 32-ounce...

LIQUII MOLY 20004 Hydraulic Lifter Additive is a 300 ml engine-oil treatment that reduces tappet noise, cleans lifter bores and valves, and supports smoother hydraulic lifter operation. This concentrated additive is formulated to be mixed into engine oil for both gasoline and diesel engines,...

Liqui Moly Diesel Particulate Filter Protector is a concentrated DPF cleaning and regeneration additive supplied as two 250ml bottles to help soften and remove soot deposits and support active filter regeneration. Designed for modern diesel engines with particulate filters, this Liqui Moly formula helps...

Woorhive's magnetic holder secures Hot Shots 16oz diesel additive bottles to metal surfaces, keeping them upright, easy to reach, and protected from spills. Keep your Hot Shots EDT 16oz bottles organized and safe with a purpose-built magnetic mount. This low-profile black holder is engineered...

Prolong Super Lubricants PSL15000 Transmission Treatment is an 8-ounce AFMT formula that chemically bonds to transmission metal surfaces to reduce friction and help restore smoother shifting. Designed for both manual and automatic gearboxes, this compact bottle delivers Prolong's Anti-Friction Metal Treatment (AFMT) technology in...

Rislone 4782 Diesel Exhaust Fluid (DEF) Treatment Super Concentrate is an additive designed to prevent white crystalline deposits in Selective Catalytic Reduction (SCR) systems by conditioning DEF/AdBlue and protecting pumps, lines, and components. SCR systems rely on DEF/AdBlue to reduce emissions, but repeated heating,...

Comp Cams 159 Engine Break-In Oil Additive is a formulated 12-ounce concentrate designed to support controlled engine break-in when mixed with base oil. When assembling or rebuilding an engine, the initial running period is critical for seating rings and bedding new components. Comp Cams...

Wynn's Diesel Turbo Cleaner is a 500ml professional-grade fuel treatment that dissolves carbon deposits to free sticking turbo vanes and clean DOC and EGR components without disassembly. Modern diesel engines rely on a network of turbochargers, EGR valves and catalysts to run efficiently; when...

Woorhive’s Magnetic Holder secures Archoil AR6500 40 oz and 40.6 oz bottles to metal surfaces for tidy, rattle-free transport and easy access. Keep your diesel additive bottle firmly in place with a purpose-built mount that accepts both the older 40.0 oz (1.18 L) Archoil...

Stanadyne Performance Formula is a concentrated diesel treatment sold as two pint bottles that cleans injectors, restores power, improves fuel economy, and conditions fuel for colder operation. This two‑pint pack treats up to 120 gallons of diesel and combines detergents, cetane improvers, lubricity agents,...

STA-BIL 360 Marine Fuel System Treatment is a 32 oz concentrated formula that cleans injectors and lines, removes water and varnish, and provides corrosion protection for in-season marine fuel systems. Designed specifically for boats, personal watercraft, and other marine engines, STA-BIL 360 targets the...

Hot Shot's Secret Premium DEFender is a 16 oz DEF treatment additive formulated to prevent white crystal formation and help protect SCR system components in diesel vehicles. This concentrated DEFender additive mixes directly with diesel exhaust fluid to stabilize fluid chemistry, lubricate sensitive parts,...