Page 8 Advertisements Column 3

Press, Volume LXVII, Issue 20179, 6 March 1931, Page 8

You should get « from your motor i.'j That space t between piston and ~ cylinder wall must,be sealed to prevent your •- power from blowing by. The correct grade of Opaline gives you this EXTRA SERVICE. As yqu may know, motor oil's biggest l job is to go up ihto your cylinders and seal that space between each piston and cylinder wall to prevent the power from blowing by. In a new car that space is Very" slight indeed—only a lighter grade of motor oil can get into it and seal the power; But as your car travels 2000 miles, 12,000 miles, and more, the action of piston wears the, space larger, and only heavier motor oil can fill the space and seal the power in your cylinders. Sinclair Opaline Motor Oil is made, sold, and applied to give you the extra service of sealing your pistons-to pre- <y vent your power frona blowing by, , both before and after pistons are fitted or new rings installed. When you buy Opaline, you get nof J only the right quMy for thorough lubrication, but you also get thii EXTRA SERVICE of piston ? from the cof-rect grade for your, catvf " V - / y' ■■ To get precision in your lubrication, tell us how many miles your ca been driven—we 1 will' give" '"" correct grade for., your car*' -T bu-y Opaline by mileage ! + ' v ssas l*" HI m si i H 0 MB® V i'-f, L. wm ' • % Seals Power at

I * '** 1 p t I* S§ . ji'A - -