An internal combustion engine includes an engine assembly and an oil containment system attachable to the assembly. The oil containment system includes a cover component including an oil fill apparatus configured for conducting an oil to the internal combustion engine. The apparatus has a first end sealable with a cap, a second end spaced apart from the first end along a central longitudinal axis, and an annular wall concentric with and extending along the central longitudinal axis. The annular wall defines a first passage therethrough and a channel extending through the cover component along the central longitudinal axis. The oil containment system also includes a baffle component abutting the second end and defining a second passage therethrough such that the second passage is spaced apart from the channel.