2025 Chevy Tahoe Duramax Engine Review. The official epa fuel economy ratings were 33/23/27 mph. The 2025 chevy tahoe and 2025 chevy suburban will carry over the 3.0l i6 lm2 turbodiesel duramax engine, rather than offer the new 3.0l i6 lz0.

The 2025 chevy tahoe and 2025 chevy suburban will carry over the 3.0l i6 lm2 turbodiesel duramax engine, rather than offer the new 3.0l i6 lz0. The 2025 chevrolet tahoe offers balanced performance befitting of a large suv.