Product Description
Mobilgard 450 NC (No Chlorine) engine oil by ExxonMobil is a non-zinc and non-chlorine lubricant formulated with high-quality basestocks which provide low consumption characteristics, high-temperature oxidation resistance, and thermal stability. These basestocks are combined with specially selected stable additives resulting in an engine oil with well-balanced properties.
The detergent/dispersant qualities of Mobilgard 450 NC increases filter life and engine cleanliness. Its sustained high alkalinity provides excellent corrosion protection when using fuels containing up to 1.5 percent sulfur even though metals such as steel, copper, silver and bronze are present. Mobilgard 450 NC has outstanding lubricating properties and provides the necessary protection against corrosion.
Mobilgard 450 NC exhibits superior quality in reduced wear in piston rings and cylinder liners. It possesses exceptionally good water separating ability.
Features and Benefits
When used as recommended, Mobilgard 450 NC provides the following features and potential benefits:
Features |
Advantages and Potential Benefits |
| High thermal and oxidation stability | Protects against sludge formation in intermittent marine service providing cleaner, smoother running engines |
| Effective anti-wear and load carrying properties | Protects critical wear surfaces and extends engine life |
| High TBN and Outstanding TBN Retention | Controls deposits and neutralizes acids produced in the combustion process |
| Excellent detergency/dispersancy | Controls carbon deposits and varnish formation and extends oil and filter life |
| Zinc-free | Protects silver bearings |
| High Viscosity Index | Reduced oil consumption |
| Excellent water tolerance and separation | Can handle water contamination without additive depletion |
Applications
Mobilgard 450 NC engine oil has been specifically formulated to meet requirements of heavily loaded diesel engines manufactured by EMD and used in marine applications. It is suitable for other marine diesel engines of the highest horsepower, or higher brake mean effective pressure (BMEP) using distillate fuels with a sulfur content up to 1.5 percent. It will lubricate such engines in drilling rigs and stationary power generation service as well. Mobilgard 450 NC has been approved by EMD and is recommended for diesel engines manufactured by Alco, Detroit Diesel (API CF-2) and Fairbanks Morse.
Mobilgard 450 NC engine oil meets the requirements of an SAE 40 grade marine diesel engine oil and is suitable wherever API CF and/or CF-2 performance is specified. It has quality recognition by EMD, excellent DD6V92 TA test results and is rated an LMOA Generation 4 lubricant.
The absence of chlorine in Mobilgard 450 NC offers easier disposal. Waste-oil disposal costs of chlorine-containing lubricants are expected to escalate in the near future.
Typical Properties
 SAE Grade |  40 |
| Viscosity, ASTM D 445 | |
| cSt, at 40ºC | 139 |
| cSt, at 100ºC | 14.1 |
| Viscosity Index, ASTM D 2270 | 98 |
| Sulphated Ash, wt%, ASTM D 874 | 1.6 |
| Total Base #, mg KOH/g, ASTM D2896 | 13.0 |
| Pour Point, ºC, ASTM D 97 | -6 |
| Flash Point, ºC, ASTM D 92 | 260 |
| Density @ 15ºC kg/l, ASTM D 4052 | 0.897 |
| Zinc, ppm, max | 10 |
| Chlorine, ppm, max | 50 |
Precautions
MOBILGARD 450 NC is manufactured from high quality petroleum base stocks , carefully blended with selected additives. As with all petroleum products, good personal hygiene and careful handling should always be practiced. Avoid prolonged contact to skin, splashing into the eyes, ingestion or vapour inhalation. Special care is also recommended in handling used motor oils. A Service Data Sheet entitled "Safe Handling of Used Motor Oils" is available on request from your Imperial Oil Representative. Please refer to our Imperial Oil Material Safety Data Sheet for further information.
Note: This product is not controlled under Canadian WHMIS legislation.
The ExxonMobil logo and Mobilgard are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.
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