fuel specification
2.Main performance requirements including engine and bench tests for ILSAC GF-4 and ILSAC GF-3 gasoline engine oils were discussed. To anatomize the newest northern American gasoline engine specification of ILSAC GF-4,comparison and analysis was made between GF-4 and GF-3,including automotive emission exhausts after-treatment system,anti-wear and antioxidant performances,aged oil (EOT) low-temperature viscosity performance, fuel economy improvement ability.
