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  5. SOLAR Optima Series Diesel Engine Oils 20W50 API CH-4

SOLAR Optima Series Diesel Engine Oils 20W50 API CH-4

Description

A high grade lubricant developed for high speed, four-stroke engines to meet 1998 exhaust emission standards. Formulated with advanced additive technology, it provides excellent all weather protection and controls the emissions in high speed engines.

Available API
CH-4
CH-4/SL
Applications

API CH-4 was developed for diesel engines without after-treatment emission systems. They can be used
with diesel fuels ranging in sulfur content up to 0.5% weight. API CH-4 approved oils are backward
compatible and are superior in performance to API CF-4, CF, CE, CD oils. Can be used in all land based
diesel engines including:

  • Diesel powered large trucks, buses and construction machinery.
  • Light duty diesel cars, vans and buses.
  • Naturally aspirated and turbocharged diesel engines
Features & Benefits
  • High thermal and oxidation stability.
  • Proven metallo-organic anti-wear additive system protects engines under all operating conditions.
  • Excellent soot handling capability allowing for extended drain interval.
  • Optimum performance over a wide range of operating conditions.
  • Very good detergency and dispersancy ability to keep the engine clean and efficient control of sludge
    and soot deposits
Specifications
  • API CH-4, CF-4, CF, CD, CE
Key Properties

Physical Properties

SAE GRADE

20W50

API GRADE / ILSAC CLASSIFICATION

CH-4

Appearance

Bright & Clear

Specific Gravity @15°C

0.880

Flash Point °C

240

Pour Point °C

-27

Viscosity @40 °C, cSt

182.6

Viscosity @100 °C, cSt

19.50

Viscosity Index

123

Total Base No, mg KOH/g

11.80

Cold Cranking Viscosity, cP

8500 @ -15°C

HTHS viscosity @ 150 °C, mPa.s

3.9

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