Shell Rotella has a new website, WhatisPC11.com, to help educate people about the next generation of diesel engine oils known as API Proposed Category 11 . The website is designed to be a resource for topics such as the fundamentals of PC-11, impending changes, testing updates, and how it is expected to affect new, current and older engines when the category replaces API CJ-4 engine oils by 2017.
