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Marine Lubricants (continued) gines and in several types of me- dium-speed trunk piston engines. The oils come in viscosities of SAE 30, SAE 40 and SAE 50 and have a TBN of 15. Other marine lubricants are avail- able. PENNZOIL Circle 39 on Reader Service Card Pennzoil, a long-time supplier of lubricant products to the commer- cial marine sector, offers Pennzoil Supreme Duty Fleet Motor Oil, a premium quality multigrade (SAE 15W40) motor oil which exceeds API Service Classification SF-CC- CD. It is formulated with some of the finest base stocks and the most advanced additives in the industry. Supreme Duty provides unsur- passed protection for both two- and four-cycle high-performance diesel engines. Supreme Duty provides better fuel economy, less oil consumption, reduced maintenance costs, and sig- nificantly longer engine life. Accord- ing to the company, some of the benefits derived from the use of Supreme Duty include: reduction of ring and cylinder wear; improve- ment of piston cleanliness; in- creased wear protection for valve trains; and neutralization of acids from bigh sulfur fuel. Supreme Duty Fleet Motor Oil exceeds the performance require- ments of all diesel (both two- and four-cycle) and gasoline manufac- turers which specify the use of an engine oil meeting API Service Clas- sification SF, CC, CD or any combi- nation such as SF-CD. Supreme Duty is also available in SAE 10W- 30, 30, 40 and 15W-40. SAE 10W-30, 30 and 15W40 meet API Service Classification SG/CD and CE. SAE 40 meets API SG/CD and CD-II. Pennzoil also offers Long-Life Motor Oil, which provides premium quality service in both diesel and gasoline engines. It is specially for- mulated for heavy-duty service in diesel engines. Pennzoil Long-Life Motor Oil is available as a single SAE viscosity grade 10W, 20W-20, 30, 40 and 50, and as a multigrade SAE 15W-40. SAE 30 and 15W-40 meet the re- quirements of API Service Classes SG, SF, CC, CD and CE. All other grades meet the requirements of API Service Classes SG, SF, CC and CD. TEXACO Circle 42 on Reader Service Card Texaco offers a complete line of quality marine lubricants which are available worldwide to meet the needs of all types of marine equip- ment. For crosshead engines, Texaco of- fers TARO Special, a premium quality cylinder lubricant for large, slow-speed diesels burning residual fuels. It is blended from highly refined paraffinic base oils and oil soluble additives to produce a high alkaline reserve (70 TBN) product with good lubricant film strength. It is approved by all of the major crosshead engine builders. It is spe- cially formulated to prevent corro- sive wear and minimize ring depos- its. Taro Special EX 85 is a premium quality cylinder lubricant specifical- ly developed to meet the require- ments of Sulzer RLB engines. It has provided excellent performance in field tests and is approved by Sulzer for those applications where an 85 TBN product with a viscosity of 24 est at 100 degrees C is specified. DORO AR 30 (SAE 30) is a pre- mium crankcase lubricant for large, slow-speed engines. It is blended from highly refined solvent neutral oils and carefully selected additives to produce a moderate alkaline re- serve (6 TBN) oil. This product offers unusually good rust and cor- rosion protection, wear protection and water separation characteris- tics. DORO AR 30 meets the Sulzer requirement for engines equipped with PTO units. Texaco offers a complete line of trunk piston engine oils for medium and high-speed diesels. The specific lubricant required would be based on the sulfur content of the fuel being used in the engine. TARO XD oils, with a TBN of 15 minimum, are used in engines burning fuel with a sulfur content up to 1.8 percent. TARO DP oils, with a TBN of 30 minimum, are specifically designed for trunk type engines utilizing fuel with sulfur in excess of 1.8 percent. TARO XD and TARO DP are avail- able in SAE 30 and SAE 40 viscosity grades. TARO XL 40 (SAE 40) is for use in medium-speed engines where the operating conditions or fuel sul- fur content requires a 40 TBN prod- uct. All of these oils are blended from carefully refined base oils fortified with specially developed additive packages to give excellent perform- ance even under the most severe operating conditions. They have (continued on page 64) ^ STV/SANDERS & THOMAS Marine Engineering • Systems Analysis Consulting/Design Engineering 7900 Westpark Drive 703/893-1339 McLean, VA 22102 T.UI. 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