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

Description

A premium diesel engine lubricant recommended for on and off-highway vehicles, providing excellent lubrication and extending engine life. Formulated with state of the art additive technology to meet modern high output low emission standards for diesel engines and exhibiting excellent soot handling properties, reduced oil and fuel consumption, extended oil interval and prolonged engine life.

Available API
CH-4
CH-4/SL
Applications

API CI-4 was developed to improve engine reliability fitted with exhaust gas recirculation (EGR) system
in place and intended for use with diesel fuels ranging in sulfur content up to 0.5% weight. Introduced in
2002, it was designed for 2004 exhaust emission standards implemented in 2002. Recommended for all
modern diesel engines fitted with latest generation after treatment devices. 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
  • Excellent thermal and oxidation stability.
  • Improved anti-wear and anticorrosion protection.
  • Better soot handling capability allowing for extended drain interval.
  • High TBN reserve means better deposit control and acid neutralization.
  • Excellent low temperature performance ensuring better wear protection at start-up.
Specifications
  • API CI-4 with CI-4 PLUS, CH-4

Key Properties

Physical Properties

SAE GRADE

20W50

API GRADE / ILSAC CLASSIFICATION

 CI-4

Appearance

Bright & Clear

Specific Gravity @15°C

0.880

Flash Point °C

238

Pour Point °C

-27

Viscosity @40 °C, cSt

183.05

Viscosity @100 °C, cSt

19.75

Viscosity Index

125

Total Base No, mg KOH/g

11.50

Cold Cranking Viscosity, cP

8500 @ -15°C

HTHS viscosity @ 150 °C, mPa.s

3.9