Opti-4 is a unique blend utilizing patented Eutectic additive technology for anti-wear characteristics combined with the industry's highest standard for anti-corrosion and thermal stability. Through the use of the Eutectic additive, Opti-4 extends the life of any 4-cycle power equipment engine by reducing friction, heat, and wear.

Interlube is so confident in Opti-4's ability to increase performance and extend engine life thru its Eutectic anti-wear additive that when a six-pack of Opti-4 is purchased with a new piece of 4-cycle power equipment, Interlube will Double the engine warranty on internal engine parts. Interlube takes the standard manufacturers engine warranty of two years and Doubles it to four years. Not only is your engine protected from wear, but you are protected from potential costly repairs for an additional two years.

At the time of equipment purchase, simply fill out the warranty registration contained in each six-pack, mail the top copy to Interlube. The middle copy stays with the servicing dealer where the oil and equipment were bought, and the bottom copy is retained by the purchaser. If a failure occurs during the extended warranty period, the equipment is taken back to the servicing dealer who then files a warranty with Interlube instead of the engine manufacturer. It's really that simple. 

Interlube has been in business for over 20 years and has proven to be an industry leader in anti-wear oil technology.