SOLAR PREMIUM SERIES DIESEL ENGINE OIL 15W40 API CK-4

Available Packs

Description

SOLAR PREMIUM 15W40 is an advanced fully synthetic diesel engine oil designed to provide superior protection, extended drain intervals, and enhanced fuel economy for high-performance diesel engines. Meeting the latest API CK-4 specification, it ensures exceptional engine cleanliness, wear protection, and emissions system compatibility in modern and older diesel engines.

Formulated with premium synthetic base oils and state-of-the-art additive technology, SOLAR PREMIUM 15W40 delivers outstanding oxidation stability, shear resistance, and deposit control, ensuring long-lasting engine performance in extreme operating conditions. It is suitable for heavy-duty commercial vehicles, construction equipment, agricultural machinery, and industrial applications requiring API CK-4.

Available API

CK-4

CJ-4

CJ-4/SN

CI-4

CI-4/SL

CI-4 PLUS

Applications

Suitable for heavy-duty diesel engines in trucks, buses, construction equipment, and industrial machinery.
Ideal for modern diesel engines with advanced emission control systems (DPF, EGR, SCR).
Recommended for long-haul trucks, fleet operations, and off-road heavy equipment.
Compatible with turbocharged and naturally aspirated diesel engines operating under severe conditions.
Suitable for agriculture, mining, and marine diesel engines requiring high-performance lubrication.

Features & Benefits

Outstanding Wear Protection – Reduces metal-to-metal contact for extended engine life.
Superior Oxidation & Thermal Stability – Prevents oil degradation and deposit formation.
Extended Drain Intervals – Allows longer service intervals, reducing maintenance costs.
Advanced Soot & Sludge Control – Keeps engines clean for optimal performance.
Excellent Fuel Economy – Reduces internal friction for improved efficiency.
Cold Weather Performance – Ensures smooth start-up and protection in low temperatures.
High Shear Stability – Maintains viscosity under extreme loads and temperatures.
Emissions System Protection – Compatible with diesel particulate filters (DPF) and other exhaust after-treatment systems.

Recommended for Vehicles & Assemblies Requiring

API CK-4, CJ-4, CI-4+, CI-4, CH-4 or equivalent.
ACEA E9, E7, E6 standards.
ILSAC GF-5 equivalent for fuel economy and performance benefits.
OEM approvals and recommendations for Cummins, Volvo, Mack, Detroit Diesel, Caterpillar, MAN, Mercedes-Benz, Renault Trucks, and other leading manufacturers.

Key Properties

Physical Properties
Properties	15W40
API / ACEA Classification	CK-4
Appearance	Bright & Clear
Specific Gravity @15°C	0.865
Flash Point °C	228
Pour Point °C	-30
Viscosity @40 °C, cSt	120.15
Viscosity @100 °C, cSt	15.35
Viscosity Index	134
Total Base No, mg KOH/g	9.80
Cold Cranking Viscosity (cP)	5900 @ -20°C