Medway Lubricants - Specialist Oils, Lubricants and Fluids

Mobil Delvac 1™ LE 5W-30

Fully Synthetic Heavy-Duty Diesel Engine Oil
Mobil Delvac 1 LE 5W-30 is a fully synthetic, heavy-duty diesel engine oil that combines advanced engine protection for modern low emissions vehicles with enhanced fuel economy potential* and other sustainability-related benefits such as engine durability, emissions system protection and extended drain capability.


Mobil Delvac 1 LE 5W-30 utilizes state-of-the-art technology to deliver exceptional performance and is well suited for an extensive array of diesel-powered commercial vehicles for both on- and off-highway use in industries such as transportation, mining, construction and agriculture. Mobil Delvac 1 LE 5W-30 meets or exceeds an extremely broad range of industry and manufacturer specifications from around the world.

*Relative to conventional 15W-40 engine oil - Actual fuel economy improvement is dependent on vehicle/equipment type, outside temperature, driving conditions and your current fluid viscosity.

High output, low emissions engines significantly increase demands on engine lubricants. Tighter engine design reduces oil consumption, resulting in less fresh oil makeup to replenish depleted additives. Thermal stresses on the lubricant are increased with the use of inter-coolers and turbochargers. Higher fuel injection and cylinder pressures and retarded timing improve burn efficiency, but also increase engine temperatures, volatility, and soot loading of the oil. The advanced technology in Mobil Delvac 1 LE 5W-30 delivers exceptional performance in these severe conditions while protecting emissions systems.

FeaturesAdvantages & Potential Benefits
Advanced Wear Protection Engine Durability
Enhanced Fuel Economy Potential* Reduced Fuel Consumption
Extended Drain Interval Capability Fewer Oil Changes and Less Oil Disposal
Emissions System Protection Emissions System Durability and Performance
Excellent Low Temperature Performance Easier Starting in Cold Weather


  • Heavy Duty Diesel Engines for Modern Low Emissions Vehicles Utilizing Technologies such as Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR), Continuously Regenerating Traps (CRT), Diesel Oxidation Catalysts (DOC) and Exhaust Gas Recirculation (EGR)
  • Naturally Aspirated and Turbo-Charged Diesel Powered Equipment
  • On-Highway Short-Haul and Long-Haul Trucks and Buses
  • Off-Highway Mining, Construction and Agricultural Equipment 

Please refer to the owners handbook for the OEM application requirements for your vehicle or equipment


Mobil Delvac 1 LE 5W-30 meets or exceeds the requirements of: 5W-30 
Caterpillar ECF-3 
Cummins CES 20081 
DAF Extended Drain 
Ford WSS-M2C171-E


Mobil Delvac 1 LE 5W-30 has the following builder approvals: 5W-30 
MB-Approval 228.51 
MB-Approval 228.31 
MAN M 3477 
Volvo VDS-4 
Volvo VDS-3 
Deutz DQC IV-10 LA 
Detroit Diesel DDC Power Guard Oil Specification 93K218 
Mack EO-O Premium Plus 
MTU Oil Category 3.1 
Renault Truck RLD-3 
Renault Truck RLD-2


Mobil Delvac 1 LE 5W-30 is recommended by ExxonMobil for use in applications requiring: 5W-30 
Renault Truck RGD  
Renault Truck RXD


Mobil Delvac 1 LE 5W-30Value
SAE Grade 5W-30
Viscosity, ASTM D 445
cSt @ 40ºC 69
cSt @ 100ºC 11.8
Viscosity Index, ASTM D 2270 168
Sulfated Ash, wt%, ASTM D 874 1.0
Total Base #, mg KOH/g, ASTM D 2896 10
Pour Point, ºC, ASTM D 97 -45
Flash Point, ºC, ASTM D 92 234
Density @ 15ºC kg/l, ASTM D 4052 0.855

Additional Info

  • Vehicle Brand: Ford, Mercedes-Benz, Renault, Volvo, Caterpillar, DAF, Mack, Man, MTU, Cummins, Deutz, Detroit Diesel
  • Caterpillar Manufacturer Specs: CAT ECF-3
  • Cummins Manufacturer Specs: CES 20081
  • DAF Manufacturer Specs: DAF Extended Drain
  • Detroit Diesel Manufacturer Specs: 93K218
  • Deutz Manufacturer Specs: DQC IV-10 LA
  • Ford Manufacturer Specs: Ford M2C171-E
  • Mack Manufacturer Specs: MACK EO-O
  • Man Manufacturer Specs: MAN M 3477
  • Mercedes-Benz Manufacturer Specs: MB-Approval 228.51, MB-Approval 228.31
  • MTU Manufacturer Specs: Oil category 3.1
  • Renault Manufacturer Specs: Renault Truck RLD-2, Renault Truck RLD-3, Renault Truck RXD
  • Volvo Manufacturer Specs: VDS-3, VDS-4
  • Oil Manufacturer: Mobil
  • Oil Type: Synthetic
  • Grade: 5W-30
  • ACEA Specification: E6, E7, E9
  • API Guide: CJ-4, SN
Last modified on Thursday, 11 April 2013 15:23

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