Marvel Mystery Oil MM14R Fuel and Oil Additive, 1 gal, Liquid

Unlike some products that simply burn up and billow out your car's tailpipe, Marvel Mystery Oil offers long-lasting protection to your car's hard working engine, by cleaning and adding a lubricating layer unparalleled by the other so called fuel and motor treatments. Add Marvel to your gas tank to restore engine performance. Use at every fill-up as part of regular engine maintenance. Regular use can lead to improved fuel economy. Use at every oil change for optimal performance.