"I'll pick up a few cases of Delo in the near future"
Good morning Ron. Here's a comparison of various motor oils:
https://pqiablog.com/2017-motor-oil-samples-tested/It presents a lot of detailed information that could be useful if it is accurate. For example note the difference in phosphorus between Rotella and Delo. Isn't it zinc and phosphorus that protect flat tappet camshafts and lifter bottoms? If that is so Rotella seems to have more of those 2 components.
