Page 39: of Maritime Reporter Magazine (July 1989)
Excess oil is drawn into the combus- tion chambers where it is burned along with the fuel.
Because oil is burned along with the gasoline, two-cycle engines are especially prone to deposits in the combustion chambers, exhaust ports, piston rings and spark plugs.
Therefore, special ashless-type de- tergent additives are blended into the oil to prevent deposit formation.
The detergent additives blended into passenger car motor oils are compounds usually containing metals such as calcium and magne- sium. When burned, these motor oils would leave behind an ash resi- due containing these metals. Ash- less detergents used in two-cycle oils do not contain these metal com- pounds, and when burned, leave be- hind no ash deposits to foul spark plugs, stick rings, or block exhaust ports.
All major outboard engine manu- facturers require the lubricant used in their two-cycle engine be ap- proved by the National Marine
Manufacturers Association (NMMA). This organization has standardized tests to measure an oil's ability to protect an outboard engine from rust, deposits, pre-igni- tion, and piston scuffing. In fact, this organization has just intro- duced a more rigorous test proce- dure and specification. Designated
TC-W II, this specification includes more severe engine testing to meas- ure the oil's lubrication ability and pre-ignition tendencies, higher fuel/ oil ratios in the general performance engine testing to simulate the new 100:1 fuel-to-oil mixtures produced by the new Variable Ratio Oil (VRO) injection systems, and new tests to measure the oil's low tem- perature fluidity and resistance to gel formation.
Pennzoil Premium Outboard Lu- bricant was reportedly the first ma- jor oil brand to be approved by the
NMMA as a TC-W II lubricant.
Pennzoil has taken extensive steps to insure the quality and perform- ance of this product. Pennzoil man- ufactures its Premium Outboard
Lubricant "in-house" instead of us- ing a contract blender/packager.
Pennzoil has installed a totally de- dicated system for handling this product's raw material ingredients, blending and packaging the finished outboard oil in quart bottles, gallon jugs, and 55-gallon drums. Pennzoil has also enacted very strict quality control procedures involving exten- sive testing of both raw materials and finished product.
Pennzoil's unending commitment to quality, in conjunction with the new NMMA TC-W II specification, assures the consumer that Pennzoil
Premium Outboard Lubricant gives the consumer the ultimate in engine performance and protection.
Circle 110 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 (continued)
Our 'gold' Caprolan industrial nylon was very, very good.
Our 'white' Caprolan 2000 nylon is even better.
The high strength and super versatility make
Caprolan 2000 ideal for marine ropes.
And our special proprietary treatment - SeaGard™ offers optimum wet strength for fishing, docking, anchoring, towing and mooring lines.
In fact, Caprolan 2000 is so good that
Allied Fibers is switching over all industrial nylon production from 'gold' to 'white'.
Caprolan 2000 ny on - not good as gold - better!
For more information on how Caprolan 2000 SeaGard can help you manufacture high strength, versatile marine ropes, contact: Mr. Earl B. Clark, Allied-Signal, Inc., 1411 Broadway, New York, NY 10018.
Circle 312 on Reader Service Card 41