Page 100: of Maritime Reporter Magazine (June 1996)

New Marine Lubricant

Cembats Effects Of Residual

Fuel Centaminatien

In many types of medium-speed trunk diesel engines, residual fuel often contaminates engine oil.

Contamination compromises the oil's ability to perform and can ulti- mately cause filter plugging, exces- sive piston deposits and sludge to form in the engine's camshaft and

Before SEATRANS started usin

Mobilgard 430 in Nornew

Supplier's Bergen BRM8 diesel engine, deposits and sludge caused problems. crankcase areas.

Widespread availability and use of inexpensive and inferior residual fuels places even greater demands on the engine lubricant.

The challenge for marine lubricant suppliers is to develop novel lubricant formula- tions that incorporate new, bal- anced additive systems which pro- tect engines from performance debilitating deposits and sludge build-up.

Mobil's new lubricants are compatible with residual fuel

A research program and exten- sive field testing helped Mobil

Corp. develop new lubricant tech- nology that the company says com- bats the detrimental effects of residual fuel contamination.

According to the oil supplier,

Mobilgard 30 and 40 Series oils are specially formulated to be compati- ble with residual fuel. Because of this compatibility, the oils keep medium-speed diesel engines cleaner and performing more effi- ciently than lubricants that are not as technically balanced.

Before the oil company began for- mulating the new marine lubri- cants, it conducted an extensive research program around the world to study medium-speed engine cleanliness. The research led to Mobil's invention of the patented Residual Fuel Detection (RFD) test, which allows Mobil to quantify the extent and amount of residual fuel contamination in medium-speed engine oils and determine the source of the prob- lem. Technical data from RFD testing was instrumental to the development of Mobilgard 30/40

Series oils.

Product testing at sea yields impressive results

Mobil extensively field tested the new Mobilgard 30/40 Series oils for many thousands of hours aboard vessels owned by several cus- tomers, including Royal Caribbean

Cruises Ltd. (RCCL), SEATRANS and Cornelis Vrolijk BV. According to reports provided by Mobil, all the field test results confirm that the new oils successfully protected the test vessels' medium-speed diesel engines from piston deposits, sludge build-up and excessive wear.

RCCL switched to Mobilgard 440 after the company's Marine

Operations Department reported seeing black sludge in the top deck of MTV Nordic Empress' engine.

After using the new lubricant for 5,200 hours, the cruise line con- firmed a "significant improvement in the cleanliness of the engine's top deck, camshaft and crankcase aritime Reporter/Engineering News

With over 16000 vessels to service each year, we get our fair share of problems to solve.

In today's marine industry there is no time for breakdowns.

If your vessel is not operating, its not making money.

That's why everything we do at

Unitor is geared towards the smooth efficient running of your vessel. We call it capability.

The capability to deliver world- wide. The capability to supply the right service and products.

Above all, the capability to get the job done.

With over 50 years of experience and a standardized stock of over 4500 marine-quality products available from 73 own offices and 180 agents supplying more than 950 ports worldwide... ...Unitor have the capability -whatever it takes.

UfllTOR

Unitor AS, P0 Box 300 Skuyen, N-0212 Oslo, Norway

Tel: + 4722131415-Fax:+ 47 22134500

Tlx: 76004 UNT0R N

Circle 183 on Reader Service Card

Repair & maintenance remains at the heart of the smooth and efficient running of any vessel.

Unitor's Repair & Maintenance concept is designed to offer the maximum of efficiency through products, service, crew education and support.

Unitor's onboard service is an important aspect of modern ship maintenance. We supplement the regular crew's need for more specialist expertise in refrigeration, chemicals and fire, rescue and safety.

More than one million individual deliveries are made each year to vessels through-out the world by

Unitor port service personnel.

Products such as welding and refriger-ation gases, fire rescue and safety equipment, marine chemicals, parts and spares, welding equipment are just part of Unitor's capability.

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Unitor's sales and technical executives are trained to support shipowners and mana- gers in solving their everyday operational problems. Detailed technical backup can be provided both at port level and directly to your office's as required.