$162.99Royal Purple’s Duralec® Super Diesel Motor Oil – 15W-40 is a premium-grade synthetic engine oil engineered for modern diesel engines equipped with advanced emissions control systems. Formulated for performance and durability, it meets the stringent requirements for 2007 and 2010 EPA emissions-compliant engines using Ultra-Low Sulfur Diesel (ULSD) fuels in North America and Europe.
$192.99Unlock serious street power and protection with Royal Purple® HPS® 5W-30, the synthetic motor oil engineered for high-performance and modified engines. Designed for vehicles outside factory warranty, HPS is fortified with high zinc/phosphorus additives and Synerlec® technology to deliver unmatched protection, horsepower, and longevity under the most demanding conditions.