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Commonly specified for older engines and for equipment operating at consistently warm temperatures.<\/p>\n<p class=\"lwc-explore-more\">Explore more: <a href=\"https:\/\/bylube.com\/fr\/castrol-crb\/\">Castrol CRB<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Castrol CRB Monograde 40 is an SAE 40 monograde heavy duty diesel engine oil for commercial, agricultural and plant engines that call for a single grade oil rather than a multigrade. Commonly specified for older engines and for equipment operating at consistently warm temperatures. 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