Best Oil Additive For High Mileage Engines in 2022: Top 10 Picks

Sometimes it might be quite difficult to find the best oil additive for high mileage engines. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this oil additive for high mileage engines buying guide.

Our 10 Best Picks:

10 Best Oil Additive For High Mileage Engines Reviews:

SaleBestseller No. 1
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
  • High Mileage solution to protect against power robbing friction heat and wear
  • Restores performance in engines due to wear and oil consumption in older engines
  • Revitalizes seals to help stop oil leaks and prevent them from ever occuring
  • Powerful detergents to remove and prevent oil sludge, use during your next oil change or between changes to replace lost additive content
  • Powerful detergents to remove and prevent oil sludge, use during your next oil change or between changes to replace lost additive content
Bestseller No. 2
Bar's Leaks High Mileage Engine Repair, 16.9 oz
  • Increases Oil Pressure
  • Reduces Friction
  • Helps Clean Internal Parts
  • Quiets Noise
SaleBestseller No. 3
High Mileage Oil Stabilizer
  • Package Dimensions: 28.956 H x 8.128 L x 8.382 W (centimetres)
  • Package Weight: 0.93 kilograms
  • Country of Origin : United States
  • Fit type: Universal Fit
Bestseller No. 4
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
Bestseller No. 5
Rislone High Mileage 4 6 8 Compression Repair, 16.9 oz.
  • Restores lost compression
  • Repairs blow-by
  • Frees sticky rings
  • Viscosity improver
  • Use on any gasoline or diesel engine
SaleBestseller No. 6
Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
  • Motor oil additive - Liqui Moly MoS2 anti-friction (300 ml. Can)
  • Forms High load-bearing film of lubricant on all friction surfaces
  • You will be surprised at how much better your engine sounds and how controlled it will be even at very high RPM
  • Flash point: 181.0 degrees_celsius
Bestseller No. 7
TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube - Makes High Mileage Cars Like New with a Synthetic Material (Treats One Regular Car, Truck, Tractor or Small Diesel)
  • GROUNDBREAKING: Made in the USA – TriboTEX is a revolutionary engine oil additive. It contains synthetic nanoparticles developed with funding from the U.S. Department of Energy, NASA, & the National Science Foundation.
  • QUIETER & SMOOTHER PERFORMANCE: Reverses wear in bearings by building a diamond-like carbon coating.
  • UNIVERSAL: Compatible with all types of motor oil and can be used in gas or diesel engines. Use for both old and new cars. It is an excellent engine booster.
  • EFFICIENT: Our masterfully engineered engine treatment improves fuel consumption and reduces engine noise. It is time to improve your engine and take your driving experience to a new level.
  • GUARANTEED QUALITY: We know you will be delighted with this ground-breaking technology. Our treatment comes with a 100% satisfaction guarantee.
Bestseller No. 8
Lucas Oil 10001 Heavy Duty Oil Stabilizer - 1 Quart
  • Extends oil and engine life
  • Virtually eliminates dry starts and excessive wear
  • Raises Oil Pressure
  • Will not sludge or varnish
  • Lowers engine temperature
Bestseller No. 9
Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair
  • This Premium Quality Synthetic Blend Works With All Types Of Motor/Engine Oil Including Regular Petroleum, High Mileage, Synthetic Blends And Fully Synthetic Formulas
  • Works In All Gasoline And Diesel Engines Including Turbocharged, Eco Boost, Hybrid And Even Racing Engines, Including 3, 4, 5, 6, 8 And 10 Cylinder Engines In All Cars, Trucks, Vans And Suv'S
  • Can Also Be Used In Heavy-Duty Applications As Well As Tractors, Boats, Rv'S, Motorcycles (Including Wet Clutch), Atv'S, Lawn Equipment
  • In Most Cases The Oil Leak Issue Will Be Repaired With A Single Dosage. However, For Best Results And To Prevent The Problems From Reoccurring, Use With Every Other Oil Change, Or Once Per Year
Bestseller No. 10
Rislone Hy-Per Lube HPL201-3PK High Performance Oil Supplement - 32 oz, (Pack of 3)
  • Provides complete protection against start-up wear by leaving a protective film on all internal engine parts, even if your engine has not been running for long periods of time
  • When used in high mileage engines, Hy-Per Lube will help restore performance and improve fuel economy by better sealing piston rings and valve guides
  • Hy-Per Lube provides added protection between oil changes and will extend the life of your oil by up to 50
  • Rislone Hy-per Lube Oil Supplement, 32oz Pack of 3 reduces foam and helps extend the life of your engine and also reduces gear box and transmission temperatures
  • Rislone Hy-per Lube Oil Supplement will reduce lifter and drive train noise

Last update on 2022-10-01 / Affiliate links / Images from Amazon Product Advertising API

How to find the best oil additive for high mileage engines?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best oil additive for high mileage engines for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good oil additive for high mileage engines recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the oil additive for high mileage engines need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for oil additive for high mileage engines to find what you’re looking for:

Brand

In some cases, the brand of oil additive for high mileage engines is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given oil additive for high mileage engines are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about oil additive for high mileage engines are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare oil additive for high mileage engines quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best oil additive for high mileage engines can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.