As engines age, sludge and other harmful deposits can build up, altering tolerances and causing sticky rings, noisy valves and lifters, and clogged oil passages and screens.
Rislone has the solution for keeping engines clean: Rislone Engine Treatment Concentrate, a high-quality penetrating lubrication oil, combined with protective engine additives and cleaning agents. Regular use of Rislone Engine Treatment Concentrate, as part of oil and filter changes at the proper intervals, will keep deposits to a minimum, acccording to the company.
It works with all petroleum-based motor oils, including conventional, high-mileage and synthetic formulas. For best protection, install the treatment with every oil change.