Mystik SAE 15W-40 JT-8 Synthetic Blend Super Heavy Duty Engine Oil, 5-Gallon

Mystik® JT-8® Synthetic Blend Super Heavy Duty Engine Oil SAE 15W-40 is a premium, high-performance motor oil designed primarily for heavy-duty diesel engines, while also being highly compatible with gasoline vehicles. Formulated by Mystik Lubricants, this oil features a specialized blend of premium base stocks and proprietary additive technologies to protect against severe operating temperatures, thermal breakdown, and soot buildup.

Key Features and Performance Benefits

• Deposit Control: Minimizes the accumulation of sludge, varnish, and soot under extreme workloads.
• Oxidation Resistance: Provides 100% improved oxidation stability over baseline formulas, matching the demands of modern, hot-running engines.
• Extended Engine Durability: Delivers up to double the wear protection and oil durability compared to conventional legacy CJ-4 oils.
• Viscosity Stability: Employs a highly shear-stable polymer that prevents the oil from thinning out under intense loads.

Technical Specifications

• SAE Viscosity Grade: 15W-40
• API Service Categories: CK-4, CJ-4, CI-4 Plus, CH-4, SN, SM, SL
• Kinematic Viscosity @ 40°C: 112 cSt
• Kinematic Viscosity @ 100°C: 15.2 cSt
• Viscosity Index: 141
• Flash Point (COC): 450°F (232°C)
• Pour Point: -33°F (-36°C)
• Total Base Number (TBN): 10

Target Applications

• Commercial Transport: Ideal for over-the-road commercial trucking fleets and transit buses.
• Off-Highway Equipment: Heavily utilized in agriculture (tractors), construction machinery, and stationary industrial engines.
• Emissions Hardware: Specifically formulated to protect low-emission Tier 4 engines and exhaust aftertreatment parts like Diesel Particulate Filters (DPFs).

⚠️ Warning

This product can expose you to chemicals including Lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.