SACson AB – through cooperation as Chevron Marine Lubricants agent,
offers its clients Chevron’s new Taro® Special HT Ultra cylinder oil.
Chevron Marine Lubricants receives first OEM approval for latest
high BN cylinder oil Taro® Special HT Ultra
Chevron Marine Lubricants has been working closely with key customers and
MAN Diesel & Turbo to develop Taro® Special HT Ultra.
A new 2-stroke cylinder lubricant able to cope with the demands of the latest high efficiency engines on the market today whilst running on high sulphur fuel at low speeds.
Taro® Special HT Ultra provides the flexibility required for blending on board (BOB) and is the first 140BN cylinder lubricant OEM approved for use on its own for ultra-high corrosion environments, following extensive laboratory and on-board trials.
These new engines have an increased tendency to develop cold corrosion inside the cylinder than the older, less efficient units. To mitigate the effects of this highly corrosive environment, several methods are possible with the easiest to simply increase cylinder lubricant feed rates. However this is not always the most economical strategy and would be more efficient to switch to a higher BN lubricant once a certain rate is reached. This will provide the same level of corrosion protection with less product injected into the cylinder.
Naturally, injecting more alkalinity than necessary is not economical and may in fact cause performance issues. Ship operators should therefore make sure to use the right oil to get maximum engine protection at the lowest cylinder lubricant federate. Using Chevron Marine Lubricants DOT.FAST® on board drip oil monitoring in conjunction with FAST™ on-shore testing provides data to enable the vessel to optimise the feed rate on-board to balance wear against consumption ensuring the lowest possible running costs.
Chevron Marine Lubricants continue to offer the full range from low BN products such as our 25BN Taro® Special HT LF to our latest high, 140BN product Taro® Special HT Ultra ensuring all of our customers needs across a wide range of operating conditions are met while continuing to provide optimal engine protection and cost management.
Comparison of drip oil analysis results of the three highest BN Chevron cylinder oils showing feed rates being reduced during field testing. Using Taro Special HT Ultra, wear metals stay below OEM limits with much lower oil consumption on the latest engine types.
Taro® Special HT Ultra
Description
Taro® Special HT Ultra is 140 Base Number (BN) cylinder oil for use in large two-stroke engines. As an ultra-high base number cylinder lubricant, this product is created for the latest type of highly efficient two-stroke engines which have an increased tendency to develop cold corrosion inside the cylinder than the older, less efficient installations. Taro® Special HT Ultra provides more efficient corrosion protection at lower feedrates, therefore helping to reduce operating cost.
Typical Characteristics
Recommended Uses
The base number of Taro® Special HT Ultra enables this product to be used in two-stroke engines running on high sulphur content heavy fuel, oil which are sensitive to cold corrosion.
Performance Benefits
1. Engine Protection
Excellent lubrication properties maintains an oil film under severe, high load conditions, thereby reducing frictional wear and preventing scuffing of liners, pistons and rings. Effective acid neutralization ensures protection against excessive cylinder liner and piston ring wear resulting from the use of high sulphur heavy fuel oils, thus extending cylinder liner and piston ring life.
2. Engine Cleanliness
Detergent / dispersant properties prevent ring sticking and minimizes deposit formation throughout the combustion chamber exhaust areas.
3. Storage Stability
Completely stable at different ambient temperatures and during long-term storage.
4. Compatibility
Miscible and compatible with single-phase alkaline diesel cylinder lubricants generally known to the international marine trade.
5. Operating Cost
Ultra-high base number formulation provides the same level of alkalinity and corrosion protection at lower feedrates, reducing operating cost.
Typical test data are average values only. Minor variations which do not affect product performance are expected in normal manufacturing. Always confirm that the product selected is consistent with the original equipment manufacturer’s recommendation for the equipment operating conditions and customer’s maintenance practices. (August, 2016)
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