Heavy Duty

PEAK® Synthetic Blend Diesel Engine Oil is as tough as the vehicles and environments in which they operate. PEAK® 15W-40 CK-4/SN Synthetic Blend Diesel Engine Oil is designed to deliver on performance in four key areas:

• Resistance to oil oxidation and high temperature volatility – major contributors to oil viscosity breakdown
• Premium shear stability control – longer oil life and wear protection.
• Oil aeration, Sludge and carbon deposit reduction
• Low temperature pumpability – quick oil circulation for immediate engine protection at start-up.