Prevent Dry Starts On cold Days
New! HP 6 Pack On Sale. Save Big!
Includes 2 each HP Engine Treatment, 4 Fuel Conditioners and Free shipping!
For Your Daily Driver or Your Race Car.
Kit includes everything needed to protect even better with the new HP Engine Treatment to preserve, and lubricate your engine from LSPI and other issues.
This New Patented technology will increase performance, durability and engine efficiency in your vehicle. New HP Engine treatment pre-cleans and protects internal components; resists friction and wear; provides optimum efficiency and performance; improves fuel economy and performance.
Truckers Get Longer Engine Life - 15 Years of Proven Results and 52 Worldwide Patents to Prove It!
BestLine will quiet motors, reduce friction that will increase horse power and reduce heat. BestLine provides the highest degree of wear reduction, lubrication. All BestLine oil additives contain our patented Extreme Pressure lubricity component and wear reduction agent. Performance is guaranteed!
If you want the best in engine protection then you've come to the right place. See our reviews from other truckers. Get the best lubrication for demanding applications, use BestLine today.
New HP Engine Treatment
We've made the best even better! With more of our patented lubricity components for more protection, less noise and more power. Available now on sale when you buy the kits.

Review: Caterpillar Diesel Engine Treated with BestLine Then Drained the Oil
Tony added BestLine Diesel Engine Treatment to this old Caterpillar Tractor then drained the oil while it was running. See the full video of this unbelievable dramatic test and the outstanding performance of the BestLine Diesel Engine Treatment.
Frequently asked questions about additives.
1. What is in my engine oil?
All finished oils have a base oil that can be mineral or pure synthetic or a blend of the two. If the bottle says Full Synthetic then it has be, by law, a Group III, IV or Group V base oil that is "Synthetic". Group III and IV are the most popular oils.
Group III Base Oils
Group III base oils consist of Hydro cracked molecules that offer improved performance due to the longer Hydrocarbon molecular chain. This longer chain increases the boundary layer strength.
Group IV Characteristics
Group IV base oils are made from polyalphaolefins (PAO), which are chemically engineered base oils. PAOs offer excellent thermal stability, molecular uniformity and improved high pressure performance.
Group V Characteristics
Group V base oil is everything that is left over from the group III and IV refining process's.
2. What are oil additives?
These oils contain up to a dozen different "additives" that can be friction modifiers such as ZDDP ( zinc ) and Moly are the two you probably have heard of. There are also additives to meet a particular demand for the oil. such as viscosity index improvers, antioxidants, corrosion inhibitors, detergents, anti-foam compounds and Alkalinity improvers.
BestLine Engine Additives add a higher level of protection to the standard engine oil.
3. Can I use race oil in my daily driver?
Race oil and oils for daily drivers usually have a very different additive package. Race oil is designed to make the motor last a short period of time and they are not as concerned about antioxidants or alkalinity for the short time the oil is being used. Daily drivers however should have antioxidants and alkalinity improvers to make the oil last the 3 to 5,000 miles that the manufacturer suggests.
4. What is special about BestLine?
BestLine with its 52 Worldwide patents and unique metal treatment is unlike any other product on the market. BestLine test results have been published in the worldwide WEAR online engineering magazine for tribologists. This article scientifically proved our claims about reducing wear, friction and heat due to the unique patented formula that you will not find anywhere else.
5. What if I need help to figure out what's best for my car, truck or motorcycle?
You can send us an email with any question or comment. We love to hear from you to better understand your needs. Click on this link to send us an question or comment.

BestLine pays for itself by reducing fuel consumption and wear on important mechanical components
Reduce noise, smoke and renew your engine performance
A radically new line of patented metal treatments that are also extreme pressure lubricants that dramatically reduce friction, heat and mechanical wear to an extent never before seen. BestLine lubricity is unaffected by fuel dilution in race motors so you can boost performance and extend engine and bearing life. BestLine
Engine Treatments make bearings and all other mechanical components last more than 80% longer.
Your engine will last up to 80% longer. We stand behind it with 52 worldwide patents!
New technology in lubrication and metal treatments with 52 worldwide patents extends engine and equipment life and reduces lifter and other noise as documented in WEAR international tribology magazine.
Tested and proven by the leading Swiss Federal Institute of Technology in Lausanne (EPFL), a study is published by the world-renowned scientific journal “WEAR” from Elsevier.