ASTRON Ultima Diesel Special 15W-40

High-performance universal engine oil


Astron Ultima Diesel Special 15W-40 is a mineral high-performance universal engine oil of viscosity class SAE 15W-40.

Base oils produced with the latest refinery technology and carefully selected innovative additives guarantee that the product meets the highest requirements. Among its most outstanding properties are the excellent shear stability at high temperatures and exceptional wear protection under all operating conditions. Cleaning additives prevent deposits, keep pistons and valves clean and protect the engine against black sludge. Clean engines and low friction reduce energy loss in the engine and minimise servicing costs.

Use instructions

Astron Ultima Diesel Special 15W-40 is a high-performance engine oil for universal use, even under heavy-duty conditions. It is recommended for petrol and diesel generators, light commercial vans up to small lorries and passenger car petrol and diesel engines with or without turbocharger. It meets the stringent requirements of modern fuel-efficient engines and the latest emissions standards with a generous safety margin.

  • Specifications: ACEA A3/B4 • API SL/CF
  • Recommendations*: MB 228.3/ 229.1, VW Norm 501.01/ 505.00
SAE classDIN 51 51115W-40
Density at 15°CDIN 51 757g/cm30.873
Viscosity at -20°CDIN 51 377mPa s5380
Viscosity at 40°CDIN 51 562mm2/s115
Viscosity at 100°CDIN 51 562mm2/s15.3
Viscosity index (VI)DIN ISO 2909140
COC flash pointDIN ISO 2592°C230
Pour pointDIN ISO 3016°C– 42
Total base numberDIN ISO 3771mgKOH/g8.5

The above values may vary within commercially accepted tolerances.
* meets the requirements of the OEM manufacturer