Show Protect protecting incy automobile engine A against ainest wear the thin tl ln oil film between moving parts is really v b hat a t protects the automobile engine against wear this oil film Is six times thinner than the page of this newspaper it is kept clean by the oil ailta the device through 11 which the oil passes anil and Is filtered after miles of driving it Is important to serece sen ice the oil niter filter because after this mileage it becomes filled with as much as two pints of dirt sludge and other foreign matter taken from the oil and ceases to function at highest efficiency in keeping the oil fil mclean |