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Guardol ECT (Emission Compatible Technology) is a premium quality, synthetic blend, API CJ-4 engine oil developed for use in four-stroke cycle diesel engines designed to meet 2007 on-highway exhaust emission standards. It is specially formulated with advanced low SAPS (Sulfated Ash, Phosphorus and Sulfur) additive technology. |
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| MileMaster Heavy Duty Engine Oil CI-4+ 15W40 is a high quality, heavy-duty crankcase oil. Manufactured with top quality additive systems, this oil provides good performance in both diesel and gasoline service. Designed to effectively combat sludge and varnish formation. |
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The design of CITGO CITGARD SynDurance Engine Oil SAE 5W-40 utilizes premium synthetic base stocks to improve high and low temperature properties. Poly-alpha olefin synthetic components (PAOs) give the best low temperature performance while minimizing volatility. The careful balance of synthetic components gives improved fuel economy, improved cold temperature performance and improved engine drain interval optimization capabilities. |
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SERVICE PRO Premium Heavy Duty Engine Oil CJ-4 represents the highest level of engine protection and performance ever built into a new lubricant specification. |
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CITGO CITGARD 600 Multi-Viscosity grade engine oils use superior technology to protect current and older model low-emissions engines equipped with exhaust after treatment systems and other new design features. This product exceeds the API CJ-4 heavy duty requirements as well as existing API CI-4 PLUS and earlier categories. |
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