Delo 400 RDS SAE 10W-40

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Delo 400 RDS SAE 10W-40 is a high performance semi-synthetic heavy-duty engine oil designed to conform to current ACEA requirements as well as top tier OEM specifications for Euro IV, V and some Euro VI diesel engines.

High performance semi-synthetic heavy duty engine oil

Delo ® 400 RDS SAE 10W-40 is a high performance semisynthetic heavy duty engine oil, formulated to conform to current ACEA requirements and top tier OEM specifications for Euro IV, Euro V and some Euro VI diesel engines. Delo 400 RDS SAE 10W-40 is based upon ISOSYN® technology, with low SAPs chemistry and high viscosity index in combination with an optimal blend of dispersant, detergent, oxidation resistant, anti-wear, corrosion inhibition, viscosity improver, and de-foaming additives. Delo 400 RDS SAE 10W-40 is designed for long drain capability without compromising durability in modern low emission diesel and gas engines and offers reliable protection to diesel particulate filters (DPFs).

Benefits

  • Designed for high performance engine and emissions control system protection, extended drain intervals and long engine service life
  • Formulated for low SAPS performance to help protect catalysts and diesel particulate filters in emissions control systems
  • Offers good control of piston cleanliness, wear, soot handling and lubricant stability
  • Delo 400 RDS SAE 10W-40 grade helps improve fuel economy while offering robust engine wear protection
  • Formulated for backwards compatibility, and suitable for a range of vehicles, including older engines

Applications

  • Formulated for use in very severe on-highway naturally aspirated and turbocharged diesel engine operations. Designed for extended drain intervals in combination with low sulphur fuels*
  • Can be used in trucks and buses equipped with gas engines
  • Designed to provide good performance in diesel particulate filter (DPF), exhaust gas recirculation (EGR) and selective catalytic reduction (SCR) after treatment systems
  • Recommendations may differ between engine manufacturers so drivers’ manuals and/or dealers should be consulted if in doubt

Approvals

  • Cummins CES 20076, 20077
  • Deutz DQC IV-18 LA*
  • Mack EO-N
  • Daimler Truck DTFR 15C110** (previously known as MB Approval 228.51)
  • MTU Oil Category 3.1
  • Renault Trucks RLD-2
  • Volvo VDS-3
  • ACEA E8, E11, E9, E7, E6
  • API CI-4, CH-4
  • JASO DH-2
  • DAF Extended drain (Euro 0 to Euro VI)
  • Mack EO-M Plus, EO-M
  • MAN M3477, M3271-1 °
  • Renault RXD, RLD, RGD Suitable for use Suitable for use in applications requiring:
  • Renault Trucks RD-2, RD
  • Volvo VDS-2, VDS Suitable for use in tractors and other agricultural machinery from the following manufacturers, which require an engine oil meeting the specifications listed above:
  • Case New-Holland
  • CLAAS
  • Fendt
  • Massey–Ferguson
  • Mc Cormick
  • SAME
  • Valtra Recommendations may differ between engine manufacturers so drivers’ manuals and/or dealers should be consulted if in doubt

Typical test data

Test Test Methods Results
Viscosity Grade 10W-40
Shelf Life: 60 months from date of filling indicated on the product label
Density at 15°C, kg/l ASTM D4052 0.864
Kinematic viscosity at 40°C, mm 2 /s ASTM D445 100
Kinematic viscosity at 100°C, mm 2 /s ASTM D445 15.0
Viscosity Index ASTM D2270 154
Pour point, °C ASTM D97 -42
Flash point COC, °C ASTM D92 236
Total Base Number, mg KOH/g ASTM D2896 10.0
Sulphated Ash, %wt ASTM D874 1.0

Source: PDS 25 September 2025 · Product Data Sheet

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