Quote:
Originally Posted by George Bongert
I have recently started using Royal Purple in my car, and I am extremely pleased with their product, since it is my opinion that it is far superior to Mobil1 or Amsoil.  |
You can find a lot on the internet regarding Royal Purple vs. Amsoil. This is a good one:
http://www.kc-synthetic-oil.com/AMSO...al-purple.html. I think the author hits the nail on the head when he says "There are a few topics you should never bring up at your family holiday party. Those topics are religion, politics, and what motor oil you should use. A lot of emotion gets tied up in a man's choice of motor oil."
I've been using nothing but Amsoil since 1974. Their Z-ROD oil is formulated with high ZDDP to protect flat-tappet cams. See
https://www.amsoil.com/shop/by-produ...?code=ZRTQT-EA