SHIRINDA SAE50 TBN100 is recommended for Slow speed 2-stroke engines using high sulfur residual fuels. Engines with a specifically corrosive nature that demand a higher level of neutralization. efficiently neutralize sulfuric acid formed during combustion of high sulfur residual fuels. Suitable for use in on-board mixing systems when used in conjunction has high acid neutralization capacity, ensuring excellent cylinder protection. Its high BN created with mineral chemistry maintains cylinder protection over long periods of high sulfur residual fuel usage, preventing corrosion resulting from sulfuric acid formation. Prevents cylinder wear and scuffing, and can extend the length of time between engine overhauls.