Shaeffer's SynShield® OTR Plus Full Synthetic Engine Oil 10W-30

Full synthetic heavy-duty diesel oil that offers strong fuel economy benefits without sacrificing engine durability.

SynShield® OTR Plus 10W-30 Engine Oil is a premium advanced performance, fully synthetic, heavy-duty diesel engine oil formulated to provide maximum protection against wear, oxidation, deposit formation, soot contamination and aeration.

SynShield® OTR Plus 10W-30 Full Synthetic Engine Oil provides excellent fuel economy while maintaining engine durability and longevity. Using our proprietary friction modifiers, Micron Moly® and Penetro®, SynShield® OTR Plus 10W-30 Engine Oil creates a slippery, tenacious shield that prevents metal-to-metal contact for increased engine efficiency.