* Oil filter to engine block: This line carries oil from the filter back to the engine.
* Oil pressure sending unit line: This line carries oil pressure to the gauge on the dashboard.
* Possibly others depending on engine: Some engines might have additional lines related to oil coolers, or other engine-specific features.
While there aren't large, visible "lines" like you might see in a high-performance engine, the oil is delivered through tubes and passages within the engine block and various smaller hoses/lines. So the answer is a qualified yes.
