Recharged High Mileage Engine Treatment

Restore lost engine performance

in your high mileage vehicle and keep it running like new.
ANNUAL TREATMENT

CLASSIC ENGINE TREATMENT

Now made with Cerflon® which gives better protection against thermal breakdown.
2X NHRA U.S. NATIONALS CHAMPION

Steve Johnson

Racing in the NHRA for over 30 years. See why he is still using Slick 50®.
Supercharged Engine Treatment put to the test

When your engine is at its best - You just know

Adding one bottle of Slick 50 yielded an increase of 10 horsepower.

INVENTORS OF THE ENGINE TREATMENT

Since 1978, motorists have relied on Slick 50’s superior technology to protect their vehicle’s vital parts from friction & wear, so they can achieve the performance they crave today and down the road. From Engine Treatments to Fuel System Cleaners to Transmission Treatments, Slick 50 products are formulated with superior chemistry to ensure they clean, protect and optimize performance of critical systems. 

SLICK 50®

POUR IN PROTECTION™

For years, Slick 50® has increased engine performance and helped protect your investment. Now the inventors of the engine treatment are releasing customized formulas that will Supercharge your vehicle’s performance and Recharge performance in your high-mileage vehicle.

Learn More

Our Retail Partners

Slick 50 High Miles Truck of the Year

Jason Scheinbart's 2003 Ford Excursion going over 500K Miles with Slick 50®

STEVE JOHNSON RACING

OVER 30 YEARS WITH SLICK 50

On the NHRA Pro Stock circuit, there are few riders who work harder at competing or promoting the sport than Steve Johnson. Along with a reputation for being a tireless worker, Johnson is also known for his outgoing personality. The combination of his sunny disposition and work ethic makes Johnson one of the most popular competitors on the circuit.

MOTORSPORTS >

Testimonials

⭐⭐⭐⭐⭐

Wouldn't have gotten home without it. We had a 1992 Ford Bronco that we started using high mileage recharge in at about 150,000 miles. I lost the oil pump at about 275,000 miles and it didn't seize and I got home safely! Thank you Slick 50 we are fans since the 1990's.

Nikki

⭐⭐⭐⭐⭐

Recharged High Mileage Engine Treatment - I use this on my 2004 Honda pilot with 154000 miles due to leakage, and surprisingly after just 2 days leakage stop. Awesome. Thanks Slick50.

Joseph

⭐⭐⭐⭐⭐

I started using Slick 50® in my Ford F150 when it was new in 1995. It now has 254k miles on the original everything and still runs as strong as when it was new.

Matt