DIOL RD 13 RD 40 and 17 RD 40

Mobil commercial-vehicle-lube , Nigeria

Premium Raiload Engine Oils

Product Description

DIOL RD 13 RD 40 and 17 RD 40 oils are premium crankcase lubricants for locomotive diesel engines. These products are designed to meet the severe service demands imposed by newer railroad diesel locomotive engines. Each is formulated using high quality base oils and an additive package endorsed by equipment builders and meets the applicable requirements of General Electric (GE) and Electromotive Diesel (EMD) for their modern engines.


Features and Benefits

LMOA Generation 5 is the latest and most demanding quality for diesel locomotive engines. A Generation 5 oil must incorporate improved additive technology to handle the high demands of extended oil drain intervals. Increased levels of insolubles must be well dispersed in the lube oil to minimize wear. At the same time, effective TBN and oxidation control must be maintained. The results of using such a lubricant are:

Cleaner engines due to reduced deposits
Reduced maintenance due to extended drain intervals

DIOL RD Series products incorporate additive technology designed for LMOA Generation 5 performance. They also meet the requirements of GE Generation 4 Long Life specification and are posted on the Internal Listings of GE and EMD. Furthermore, DIOL RD Series products are zinc free, low chlorine, and non-corrosive to silver bearings and other engine metals.



  • Diesel locomotive engines specifying LMOA Generation 5 operating with extended drains


Specifications and Approvals

DIOL RD Series meets or exceed the requirements of the following: DIOL 13 RD 40 DIOL 17 RD 40
EMD Domentic Common Additive Approach X  
EMD Worthy of Field Test X  


DIOL RD Series has the following builder approvals: DIOL 13 RD 40 DIOL 17 RD 40
General Electric Generation 4, Long life X X


Typical Properties

DIOL RD Series DIOL 13 RD 40 DIOL 17 RD 40
SAE Grade 40 40
Viscosity, ASTM D 445    
cSt @ 40ºC 146 142
cSt @ 100ºC 14.8 14.8
Viscosity Index, ASTM D 2270 101 103
Sulfated Ash, wt%, ASTM D 874 1.5 2.0
Total Base # , mg KOH/g, ASTM D 2896 13.2 17.2
Pour Point, ºC, ASTM D 97 -15 -15
Flash Point, ºC, ASTM D 92 284 264
Density @ 15ºC kg/l, ASTM D 4052 0.89 0.89
Zinc, ppm ‹10 ‹10
Chlorine, ppm 25 30


Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

DIOL, the Mobil logotype, and the Pegasus design are trademarks of ExxonMobil Corporation, or one of its subsidiaries.


Mobil Oil Nigeria PLC
Lekki Peninsula Road, Victoria Island, Lagos, Nigeria

+ 234 1 545 1696

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 www.exxonmobil.com
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.