DEO 8000


PSO DEO 8000 is an (AHDDEO) Advanced Heavy-Duty Diesel Engine Oil based on the modern additive components technology designed for high-speed turbocharged diesel engines.  Its uniqueness is a combination of highly refined hydro-finished base oils and carefully selected additive components technology to give superior engine performance and protection during most demanded operating conditions.


  • PSO DEO 8000 offers a wide range of applications that make it an excellent choice for mixed fleet operators where it may be used in cars, trucks, 4WD, buses and many off-highway vehicles and stationary engines.

  • PSO DEO 8000 is recommended for a wide range of construction, agricultural equipment & farm machinery, which require stop-start service and provide bearing protection against wear and deposit formation even while operating under heavy load and elevated temperatures.


  • Developed for diesel engines and designed to provide optimum protection with reduced risk of cylinder bore polishing.
  • Reduces compression loss and blow-by that also lowers oil consumption and enhances engine life.
  • Protects against piston and combustion chamber deposits.
  • Improves engine power and fuel efficiency.
  • Suitable for a wide range of engines, excellent choice for operators of mixed fleets.
  • Grade rationalisation minimizes oil stocks, inventory costs, space allocation and also reduces the risk of incorrect applications.
  • Reduces operating costs as fewer oil changes are needed and there is reduced downtime.

Performance Standards

SAE 15W-40
ACEA 2007 E2-96 Issue 5
ACEA 2002 A2, B2 (3)
Daimler MB 228.1
MAN M271
MTU Type I Quality
Volvo VDS-3
Mack EO-L Plus (3)

Typical Data:

PSO DEO 8000 SAE 15W-40 SAE 20W-50
Kinematic Viscosity @100°C,cSt
14.3 19.3
Viscosity Index
ASTM D2270
141 130
Flash Point (COC), °C
214 220
Pour Point , °C
-24 -18
Total Base Number,
mg,KOH/g ASTM D2896
9.6 9.8

These are typical results of existing production, the future production will conform to PSO blending specifications hence any variation in these typical results will not affect the product performance.