Top Oil Additive For High Mileage Engines Reviews

Mobil Full Synthetic High Mileage Motor Oil 5W-20, 5 Quart

  • Mobil Full Synthetic High Mileage 5W-20 motor oil is designed for vehicles with over 75,000 miles, upgrading from a conventional or synthetic blend, or requiring full synthetic motor oil.
  • Provides guaranteed protection that’s 1.5X longer than our conventional and synthetic blend oils, up to 7,500 miles between oil changes*.
  • Helps to prevent oil leaks, sludge, and deposit formation to help reduce engine wear with a balanced additive system formulation and extra seal conditioner.
  • Provides excellent resistance to oil breakdown, for proven long-lasting protection, and maintains oil viscosity at high operating temperatures.
  • Recommended for all types of gasoline-powered vehicles, including those with turbocharged engines, and meets API SP resource-conserving.
Check Stock

Valvoline High Mileage 150K with Maxlife Plus Technology Motor Oil SAE 10W-30 5 QT

  • MAXLIFE PLUS TECHNOLOGY WITH MOLY ADDITIVE PROTECTION prevents engine breakdown..
  • FORMULATED TO REDUCE OIL CONSUMPTION in older high mileage engines.
  • MULTI-DIMENSIONAL ANTI-WEAR SYSTEM fights surface friction exceeding protection standards.
  • REFRESH AGING SEALS AND PREVENT LEAKS with seal conditioners.
  • RESIST OIL BREAKDOWNIN TOUGH CONDITIONS with superior antioxidants that preserve oil efficacy.
Check Stock

Valvoline High Mileage 150K with Maxlife Plus Technology Motor Oil SAE 5W-30 5 QT

  • MAXLIFE PLUS TECHNOLOGY WITH MOLY ADDITIVE PROTECTION prevents engine breakdown..
  • FORMULATED TO REDUCE OIL CONSUMPTION in older high mileage engines.
  • MULTI-DIMENSIONAL ANTI-WEAR SYSTEM fights surface friction exceeding protection standards.
  • REFRESH AGING SEALS AND PREVENT LEAKS with seal conditioners.
  • MEETS OR EXCEEDS ALL REQUIREMENTS of ILSAC GF-6A, API SP, API SN with SN PLUS, API SN.
Check Stock

Synthetic Engine Oil Treatment Additive Universally Compatible Performance Enhancing Reverses Engine Wear and Increases Vehicle Life and Mileage 8 Fl Oz by SHINE ARMOR

  • ...A cutting-edge, nanoparticle-based solution that works great for gas and diesel engines alike. It takes the properties of your host oil to the next level while preventing rust, oxidation & reduce friction..
  • Groundbreaking Formula Gear Oil. This revolutionary engine oil additive is eco friendly, made in the USA and contains scientifically backed synthetic oil nanoparticles to boost engine performance..
  • Universally Compatible. Our Engine Performance Booster oil treatment can be used in both gas and diesel engines, and old and new cars. Shine Armor's Oil Additive is compatible with all types of motor oil & engine oil like 5w30, 0w-20, 10w30, 5w20, 15w40 & more..
  • Quality Assured. We know you will be delighted with this ground-breaking engine additive technology. Our oil additive treatment is formulated using the latest technology and backwards-compatible with all vehicles..
  • Quick & Easy to Use. Effective in small two-cycle engines just add Performance Booster to the oil before mixing it with fuel. Use it to treat any oil lubricated system except air conditioning & a....
Check Stock

DWD2 Clean Metal Conditioner - Engine Oil Additive, Friction Reducer and Stiction Eliminator for Diesel and Gasoline Engines Improve Performance and Gas Mileage - Enhance Your Motor Oil! (7.oz)

  • PROFESSIONAL GRADE - DWD2 Clean Metal Conditioner is a professional grade lubricant enhancing engine treatment that reduces heat and friction, increasing fuel economy and power..
  • HIGH-PERFORMANCE STABILIZER AND MODIFIER - Clean Metal is a high-performance oil stabilizer and modifier additive that improves power and performance in your car, truck, motorcycle, or heavy equipment..
  • OPTIMIZES YOUR MOTOR OIL - Metal Conditioner Extends engine life, suspends carbon deposits, optimizes your motor oil's effectiveness and protection, and even works with conventional and synthetic motor oils..
  • SAFE FOR GASOLINE & DIESEL ENGINES - Clean Metal motor oil additive works with both gasoline and diesel engines to produce a more fuel-efficient, smoother-running, more powerful engine..
  • WORKS WITH SYNTHETIC AND NON-SYTHETIC OILS - Metal Conditioner Oil Additive works with synthetic and non-synthetic motor oils. It also works excellently with turbo engines for increased responsiveness..
Check Stock

High Mileage Oil Treatment, Stop Leak Formula for Cars and Trucks, 15 Oz, STP

  • One 15 fl oz bottle of STP High Mileage Oil Treatment + Stop Leak.
  • ZDDP oil additive prevents wear to protect your high-mileage vehicle.
  • High-viscosity formula creates a thick cushion between moving engine parts to reduce friction.
  • Leak stopper helps prevent engine leaks, noises and smoking and helps to rejuvenate seals and gaskets.
  • Add this oil treatment to engine oil during every oil change.
Check Stock

Pennzoil 550045208 Motor Oil, 5W-30, 5 Qts. - Quantity 3

  • Full synthetic 5W-30 engine oil made from natural gas, not crude, using Pennzoil's patented gas-to-liquid PurePlus Technology.
  • Designed for for vehicles with over 75,000 miles.
  • Pennzoil Platinum High Mileage 5W-30 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results).
  • No other leading high mileage motor oil provides better protection from friction (Based on Sequence IVA wear test using SAE 5W-30).
  • Formulated to deliver less oil burn off than high mileage motor oils made from crude oil.
  • Helps protect engines from loss of horsepower.
  • Single 5-quart bottle with ergonomic design for easy handling and pouring.
  • Provides faster low-temperature oil flow and protects in extreme heat.
  • Pennzoil is the first motor oil made from natural gas, not crude—PurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that's crystal clear and contains fewer impurities than other traditional and synthetic motor oils.
Check Stock

Hot Shot's Secret HSSFR332Z FR3 Friction Reducer 32 Fluid Ounce

  • 100% synthetic oil additive that protects engines and improves performance.
  • You can use the product in gas or diesel engines, works with synthetic or conventional oil.
  • FR3 Friction Reducer increases horsepower and fuel economy up to 5 percent.
  • Reduces engine wear up to 43 percent and oil operating temperature.
  • 32-ounce friction reducer engine additive reduces lifter and valve noise and restores lost compression.
Check Stock

Hot Shot s Secret - HSSFR308Z FR3 Friction Reducer 8 fl oz.

  • 00% synthetic oil additive that protects engines and improves performance.
  • You can use the product in gas or diesel engines, works with synthetic or conventional oil.
  • FR3 Friction Reducer increases horsepower and fuel economy up to 5 percent.
  • Reduces engine wear up to 43 percent and oil operating temperature.
  • 8-ounce friction reducer engine additive reduces lifter and valve noise and restores lost compression.
Check Stock

Allstar ALL78242 Timken Brand High-Temp Synthetic Racing Type Wheel Bearing Grease 14 oz. Cartridge

  • Full synthetic 5W-30 engine oil made from natural gas, not crude, using Pennzoil's patented gas-to-liquid PurePlus Technology.
  • Designed for for vehicles with over 75,000 miles.
  • Pennzoil Platinum High Mileage 5W-30 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results).
  • No other leading high mileage motor oil provides better protection from friction (Based on Sequence IVA wear test using SAE 5W-30).
  • Formulated to deliver less oil burn off than high mileage motor oils made from crude oil.
  • Helps protect engines from loss of horsepower.
  • Single 5-quart bottle with ergonomic design for easy handling and pouring.
  • Provides faster low-temperature oil flow and protects in extreme heat.
  • Pennzoil is the first motor oil made from natural gas, not crude—PurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that's crystal clear and contains fewer impurities than other traditional and synthetic motor oils.
Check Stock

Liqui Moly 2207 0W-20 Special Tec AA Motor Oil, 1 L

  • Fully synthetic low viscosity premium class motor oil, developed to meet the high demands of modern Asian and American gasoline engines..
  • The innovative additive technology guarantees best wear protection and engine cleanliness, lowest oil and fuel consumption and highest engine efficiency..
  • Ideally suited for engines with direct injection (GDI) and turbochargers.
  • Use with extended oil change intervals as per manufacturer..
Check Stock

Pennzoil Platinum High Mileage Full Synthetic 5W-30 Motor Oil for Vehicles Over 75K Miles (5-Quart, Single-Pack)

  • Full synthetic 5W-30 engine oil made from natural gas, not crude, using Pennzoil's patented gas-to-liquid PurePlus Technology.
  • Designed for for vehicles with over 75,000 miles.
  • Pennzoil Platinum High Mileage 5W-30 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results).
  • No other leading high mileage motor oil provides better protection from friction (Based on Sequence IVA wear test using SAE 5W-30).
  • Formulated to deliver less oil burn off than high mileage motor oils made from crude oil.
  • Helps protect engines from loss of horsepower.
  • Single 5-quart bottle with ergonomic design for easy handling and pouring.
  • Provides faster low-temperature oil flow and protects in extreme heat.
  • Pennzoil is the first motor oil made from natural gas, not crude—PurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that's crystal clear and contains fewer impurities than other traditional and synthetic motor oils.
Check Stock

Pennzoil Platinum High Mileage Full Synthetic 10W-30 Motor Oil for Vehicles Over 75K Miles (5-Quart, Single Pack)

  • Full synthetic 10W-30 engine oil made from natural gas, not crude, using Pennzoil's patented gas-to-liquid PurePlus Technology.
  • Designed for for vehicles with over 75,000 miles.
  • Pennzoil Platinum High Mileage 10W-30 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results).
  • No other leading high mileage motor oil provides better protection from friction (Based on Sequence IVA wear test using SAE 5W-30).
  • Formulated to deliver less oil burn off than high mileage motor oils made from crude oil.
  • Helps protect engines from loss of horsepower.
  • Single 5-quart bottle with ergonomic design for easy handling and pouring.
  • Provides faster low-temperature oil flow and protects in extreme heat.
  • Pennzoil is the first motor oil made from natural gas, not crude—PurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that's crystal clear and contains fewer impurities than other traditional and synthetic motor oils.
Check Stock