How to make diesel engine oil grade CD SAE 30, SAE 40, SAE 50

Diesel Engine Oil CD (SAE 30 / SAE 40 / SAE 50) is a cost-effective monograde engine lubricant specially formulated for older heavy-duty diesel engines operating under moderate to severe service conditions. Manufactured using high-quality base oils and a limited additive package, this formulation provides the essential protection required against wear, oxidation, corrosion, and friction while maintaining low production costs. This engine oil is specifically designed for older diesel engines that do not require modern high-performance lubricant specifications. It is ideal for trucks, tractors, agricultural machinery, stationary diesel engines, old electric generators, construction equipment, and other heavy-duty engines operating without advanced emission control systems such as EGR or DPF. This formulation has been developed for commercial manufacturing using economical base oils and carefully selected additives, enabling manufacturers to produce a reliable, low-cost diesel engine oil that meets the performance requirements of API CD and is available in SAE 30, SAE 40, and SAE 50 viscosity grades.

Features and Benefits:

• Equivalent to API CD performance level.

• Available in SAE 30, SAE 40, and SAE 50 viscosity grades.

• Provides reliable protection against engine wear.

• Helps reduce oxidation and acid corrosion caused by diesel combustion.

• Protects engine components during continuous operation.

• Suitable for older diesel engines without EGR or DPF systems.

• Excellent lubrication under moderate to severe operating conditions.

• Manufactured using economical base oils and a simple additive package.

• Low production cost with reliable commercial performance.

• Suitable for commercial lubricant manufacturing.

Applications:

• Heavy-duty diesel trucks.

• Agricultural tractors.

• Stationary diesel generators.

• Construction and industrial equipment.

• Older diesel engines.

• Fleet maintenance.

• Industrial diesel engine lubrication.

Why Choose This Formula?:

• Commercially proven formulation.

• Produces a cost-effective diesel engine oil meeting API CD performance.

• Designed specifically for older heavy-duty diesel engines.

• Uses economical base oils and readily available lubricant additives.

• Suitable for both small and large-scale production.

• Includes raw material ratios, blending procedures, production guidelines, operating instructions, quality control methods, and laboratory testing recommendations to ensure consistent product quality.

Typical Product Properties:

• Appearance: Bright & Clear — No haze or suspended particles.

• Density @ 15°C (ASTM D4052): Approximately 880 kg/m³.

• Kinematic Viscosity @ 40°C (ASTM D445): 130–140 cSt (Typical for SAE 40).

• Kinematic Viscosity @ 100°C (ASTM D445): 14–15 cSt (Meets SAE 40 requirements).

• Viscosity Index (ASTM D2270): Approximately 95–105.

• Total Base Number (ASTM D2896): 6–7 mg KOH/g.

• Pour Point (ASTM D97): −15 to −21°C.

• Flash Point, COC (ASTM D92): Approximately 240°C.

• Sulphated Ash (ASTM D874): 0.8–1.0 wt%.

• Foaming Characteristics (ASTM D892): Pass — Low foam with rapid collapse.

• Copper Strip Corrosion (ASTM D130): 1a (3 hours @ 100°C).

• Water Content (ASTM D6304): Less than 200 ppm.

• Acid Number (ASTM D664): Approximately 0.5 mg KOH/g.

• Color (ASTM D1500): Approximately 3.0 (Amber to brown).

Buyformulas.com provides one of the most practical and economical methods for manufacturing Diesel Engine Oil API CD (SAE 30 / SAE 40 / SAE 50). The formulation includes precise raw material ratios, detailed blending procedures, production guidelines, operating instructions, laboratory quality control methods, and performance evaluation recommendations, enabling manufacturers to produce a reliable, low-cost diesel engine oil for older heavy-duty engines using economical base oils and readily available lubricant additives.

✓ Complete Formula Full ingredients with exact quantities	✓ Manufacturing Process Step-by-step production method	✓ Quality Control Testing & specifications
✓ Production Cost Detailed cost breakdown	✓ Packaging Guide Storage & handling tips	✓ Technical Tips Expert notes & troubleshooting

Format	PDF
Pages	15
Language	English
Industry	Lubricants and Grease
Delivery	Within 24 hours by email
Last Updated	May 2026

★★★★★ Excellent formula! Very detailed and easy to understand. Worked perfectly for our production. Bader KSA

★★★★★ Highly recommended Complete guide with all technical details. Saved us weeks of testing. Sofia Spain

★★★★★ Great value Professional formula at a very reasonable price, High quality. Saeed Iraq