Re: Oil Synthetic or Not? Gas - What Octane? With or Without Ethanol?

Posted by JWL On 2009/3/6 11:36:40

Regarding motor oil questions: For the conventional flat tappet Packard 6- and 8-cylinder engines suggest looking at Classic Car Motor Oil. It is rated for API Service Categories: SH, SJ, and SL and comes in 15W-40 viscosity. It has 1,600 ppm ZDDP. It is made by D-A Lubricant Company, and the Indiana Region of the Classic Car Club is selling it. For information go to www.classiccarmotoroil.com or call at 317-225-0040. Roller tappet 8s and 12s are not affected by the new formulations. Makes sense to me for my '37 Six and '47 356.