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Zeith Onyx Ultimate 20W40 API SN

Zeith Onyx Ultimate 20W40 API SN

Zeith Onyx Ultimate 20W40 API SN

Zeith Onyx Ultimate SN/CF series is designed with high quality base stocks and latest technology additive system to provide excellent level of protection and performance. It works harder than other conventional motor oils by continuously preventing dirt and sludge build-up and reduces engine noise. This product meets the requirements of most car manufacturers and is suitable for use in both gasoline and diesel, naturally aspirated or turbo charged engines, operating in all round seasons and adapted to vehicles equipped with catalytic converters running on unleaded fuels.    

Features & Benefits:

  • Superior protection against viscosity and thermal breakdown.
  • Excellent detergency and dispersancy.
  • Superior sludge protection for greater engine reliability.
  • Enhanced wear protection and improved engine cleanliness.
  • Easier cold starts and improved fuel economy compared to mono-grade engine oils


Zeith Onyx Ultimate is suitable for use in the following:

  • Automotive gasoline and diesel engines
  • Passenger cars, SUVs, light trucks and vans.
  • Moderate-duty LPG vehicles.
  • Naturally aspirated or turbocharged engines.
  • Fuel-injected or indirect injection diesel engines fitted with blow-by recirculation systems.



Specifications Zeith Onyx Ultimate meets or exceeds the following International and Builder specifications:

  • API SN, SM, SL, SJ, CF
  • MB Approval 229.1
  • ACEA A3/B3
  • Volkswagen VW 505 00

Typical Characteristics

Zeith Onyx UltimateTest MethodUnits20W-4020W-50
Density @ 15 0CASTM D 4052gm/cc0.8880.890
Viscosity @ 100 0CASTM D 445cSt14.3020.40
Viscosity @ 40 0CASTM D 445cSt107175
Viscosity IndexASTM D 2270137136
Pour PointASTM D 97°C-30-30
Flash Point (COC)ASTM D 92°C230236
Total Base NumberASTM D 2896mg KOH/g8.28.2
PhosphorousASTM D 4951%wt0.10.1
CCS ViscosityASTM D 5293cP6020 @ -15 °C6060 @ -15 °C

The above figures are typical of blends with normal production tolerance and do not constitute a specification.