Mobilgard 12 SeriesDiesel Engine Oils

Product DescriptionMobilgard 12 are high performance diesel engine oils developed for use in trunk piston engines operating onlow sulphur distillate fuels in marine and industrial applications. They are formulated to have excellent resistanceto oxidation and viscosity increase over a long period of service. They have superior water separating propertiesand provide excellent corrosion protection.

Mobilgard 12 Series meets API requirements for CF rating.

Features and Benefits• Extended periods between inspections, overhaul and cleaning• Increased protection against corrosive wear• Increased oil service life• Cleaner engines

ApplicationsMobilgard 12 Series is intended for use as cylinder and bearing lubricants in marine and industrial diesel enginesoperating on distillate fuels or light fuel blends. They may be used as crankcase lubricants in large crossheadtype diesel engines operating on high sulfur fuels.

The primary, and proven particularly effective, recommendations for these oils are in small bore, high speedengines in fishing fleets; the new more severe service engines and in many types of medium speed engines.

Specifications and Approvals

412312Recommended for use in applications requiring:XXAPI CF

Typical Properties

412312UnitTest MethodMobilgard970824970963CMCS CodeClear and BrightClear and BrightVisualAppearance142108cStASTM D445Kinematic Viscosity @ 40ºC14.512.0cStASTM D445Kinematic Viscosity @ 100ºC100100noneASTM D2270Viscosity Index0.8990.896noneASTM D4052Specific Gravity, 15ºC272266ºCASTM D92Flash Point COC

1 of 2

412312UnitTest MethodMobilgard-9-9ºCASTM D97Pour Point1515mg KOH/gASTM D2896Total Base Number2.12.1Wt%ASTM D874Sulfated Ash1A1AnoneASTM D130Copper Strip Corrosion, 3h @ 121ºCPassPassnoneASTM D665Rust Characteristics Proc B20/020/0ml/mlASTM D892Foam Seq I, Tend/Stab20/020/0ml/mlASTM D892Foam Seq II, Tend/Stab20/020/0ml/mlASTM D892Foam Seq III, Tend/Stab

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

ExxonMobil Lubricants & SpecialtiesAll products may not be available locally. For more information, contact your local sales office 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 orsupersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil affiliate entities. Due to continual productresearch and development, the information contained herein is subject to change without notification. Typical Properties may vary slightly.© 2007 Exxon Mobil Corporation. All rights reserved.

2 of 2