NIRO™ HD CI-4 5W-40 is a premium-quality, 100% synthetic motor oil for heavy-duty 4-stroke diesel and gasoline engines of commercial and off-road vehicles as well as freight trucks. It is made of high-index synthetic base oils (PAO) and highly efficient additives. It meets the requirements of many manufacturers for engine protection from wear: the engines fitted with performance enhancing systems, including EGR (exhaust gas recirculation) and turbocharging with intercooling. Complies with the requirements of: API CH-4/SL; CAT ECF-1a; Mack EO-M+; MB 228.3; MAN M3275; MTU 2.0; Deutz DCQ-III; Renault RLD-2; Volvo VDS-3