Mobil Delvac™ MX ESP

Mobil commercial-vehicle-lube , Central America


Product Description

Mobil Delvac™ MX ESP 15W-40 is an advanced diesel engine oil that helps extend engine life, allowing you to run your business with confidence. This product meets or exceeds original equipment manufacturer (OEM) requirements and delivers high performance in both on and off-highway applications.

Fully backward compatible, Mobil Delvac MX ESP delivers exceptional performance in both newer and older heavy duty engine designs. Accordingly, this oil meets or exceeds the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4 and CH-4 service categories, as well as key OEM requirements.  Mobil Delvac MX ESP is universal, meaning it may also be used in gasoline engines requiring the API SN specification.

Mobil Delvac MX ESP is a tailored formulation that delivers excellent wear and engine protection, extended drain capability, outstanding high temperature performance and engine cleanliness. Developed in close collaboration with major OEMs, Mobil Delvac MX ESP is recommended for use in a wide range of heavy duty applications and operating environments in the trucking, mining, construction, agricultural and marine industries.


Features and Benefits

Mobil Delvac MX ESP is formulated with optimized base oil technology, containing hydro-processed base stocks and a tailored additive system to deliver extended performance for up to 50% beyond OEM-recommended oil drain intervals1. This proprietary formulation delivers excellent wear protection, superior oxidation stability, and outstanding TBN retention. Mobil Delvac MX ESP also provides outstanding resistance to oil consumption, oxidation, corrosive and abrasive wear, and high temperature deposits. 

The key benefits include:

Features Advantages and Potential Benefits
Meets demanding specifications of key OEMs and latest API gasoline service category One engine oil for mixed fleet operations
Superior oxidation stability Extended ODI capability. Reduced low temperature sludge build-up and high temperature deposits
Excellent soot and viscosity control Greater engine efficiency, long engine life and long oil life
Excellent oil consumption control Lower oil costs due to less make-up oil during operation
Outstanding TBN reserves Corrosion protection and extended drain intervals for both new and old engines using up to 500 ppm sulfur diesel fuel
Low temperature fluidity and pumpability Formulated for smooth starting in cold weather
Resistance to corrosive and abrasive wear Long life of critical wear surfaces
Component compatibility Long gasket and seal life
Low ash formulation meeting API CK-4 and CJ-4 requirements Long emissions aftertreatment life (DPF, DOC and SCR)

1Results may vary based on vehicle/engine condition, driving and environmental conditions Consult OEM or ExxonMobil before implementing extended ODIs.


  • Recommended for the latest heavy duty diesel engines, including those equipped with aftertreatment systems and EGR.
  • Recommended for diesel applications using older and naturally aspirated conventional designs.
  • On-highway heavy-duty trucking and off-highway applications including trucking, mining, construction, agriculture and marine.
  • On-highway applications operating in both high speed/high load and short haul pick-up/delivery service.
  • Off-highway applications operating in severe low speed/heavy load conditions using up to 500 ppm sulfur fuels.
  • High performance gasoline engines requiring API SN and mixed fleet operations.
  • Diesel-powered equipment from American, European and Japanese OEMs.


Specifications and Approvals

Mobil Delvac MX ESP meets or exceeds the requirements of: 15W-40
API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4 / SN X
Caterpillar ECF-3 X
Cummins CES 20086, 20081 X
Isuzu DEO (w/ DPD Equipped Vehicles) X


Mobil Delvac MX ESP is approved by the following OEMs: 15W-40
Allison TES 439 X
Detroit Fluids Specification 93K222, 93K218 X
Deutz DQC II-10 LA X
Mack EOS-4.5, EO-O Premium Plus X
MB-Approval 228.31 X
Renault Trucks RLD-4, RLD-3 X
MAN M 3575 X
MAN M 3275-1 X
Volvo VDS-4.5, VDS-4 X


Typical Properties

Mobil Delvac MX ESP
SAE Grade 15W-40
Viscosity, ASTM D 445
cSt @ 40ºC 109
cSt @ 100ºC 14.1
Viscosity Index, ASTM D 2270 130
Density @ 15ºC kg/L, ASTM D 4052 0.874
Pour Point, ºC, ASTM D 97 -33
Flash Point, ºC, ASTM D 92 225
Sulfated Ash, wt%, ASTM D 874 0.9
Total Base Number, mg KOH/g, ASTM D 2896 9.8
CCS, cP, ASTM D 5293 6600 @ -20C
MRV, cP, ASTM D 4684 17500 @ -25C
HTHS @ 150ºC, cP, ASTM D4683 4.1

Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.


ExxonMobil de Colombia S.A.
Calle 90 N° 21-32 , Bogota , Colombia

(571) 628 - 0460

Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification.  Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations.  The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit 
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.