XL-7500
A historical AMSOIL product announcement introducing XL-7500 100-percent synthetic motor oil in 5W-30 and 10W-30 grades, designed for up to 7,500 miles or six months of protection when used within manufacturer recommendations.
Car Care Options for the Ecology Minded Owners
Originally printed in the Mechanicsville Local Car Care Section on October 28, 1998, “Car Care Options for the Ecology Minded Owners” discusses used-oil disposal, synthetic motor oil and lower-toxicity antifreeze options.
Oils Against Oils
Originally published in Fast Fours & Rotaries in July 1998, “Oils Against Oils” reports a performance-car engine test comparing synthetic oils for viscosity retention, wear-metal generation and horsepower.