Dezel Hi-Base is a synthetic blend engine oil recommended for diesel engines operating on high sulfur fuels sometimes used in South America, Africa, Asia and Mexico. The high sulfur content of the fuel requires the use of engine oils with higher alkalinity (higher TBN) to neutralize the increased acidity caused by the fuel. Generally, the required base number (TBN) of the engine oil is 20 times the sulfur content of the fuel. Dezel Hi-Base is also formulated with Royal Purple’s proprietary Synerlec additive so it provides superior film strength and wear protection along with the increased acid neutralization benefits. For sale and use only outside of the US and Canada.
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