Mobilgard™ 450 NC marine engine oil

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Data sheets

Deep Sea Shipping Industry
Zinc Free
Enhanced Wear Protection

Product information

Technical resources

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 which can lead to extended oil and filter life
Zinc-free Protects silver bearings
Excellent water tolerance and separation Can handle water contamination without additive depletion


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 high horsepower marine diesel engines, 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
Zinc, ppm, max 10
Chlorine, ppm, max 50
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
Density @ 15ºC kg/l, ASTM D 4052 0.897
Flash Point, ºC, ASTM D 92 260
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