Diesel Power is an American automotive magazine that focuses on interests in heavily modifying trucks, SUVs, and cars powered by diesel engines. The original tagline for the magazine called it "The Voice of the Turbodiesel Enthusiast" and it’s now "The World’s Largest Diesel Magazine." As of January 2012, the magazine has certified circulation of more than 135,000 per month according to the Audit Bureau of Circulations.