Can running out of gas hurt the engine and cause MPG to decrease drastically?

Asked by Guru93XPDC Mar 22, 2023 at 11:06 AM about the 2014 Subaru Crosstrek Hybrid

Question type: Maintenance & Repair

Can running out of gas hurt the engine and cause MPG to decrease
drastically? What are other common things that lead to decreased MPG? I have
noticed in my 2014 Subaru crosstrek hybrid with 82K miles that within the past
2K miles that my MPG has decreased from about 27 MPG to 23 MPG.

2 Answers

310,265

Haven’t seen it damage an engine but have seen it damage fuel pumps, spark plugs and rare but have seen it damage O2 sensors and catalytic converters.

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