BMW Knowledge Base

Technical articles, diagnostic guides and deep dives into problem BMW components.

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Engine Mechanical Overview

BMW B58 (Gasoline) vs. B57 (Diesel): Which Six-Cylinder Should You Pick?

BMW's B58 gasoline and B57 diesel inline-sixes share the modular 500 cc-per-cylinder architecture, produce 286–374 hp, and are considered structurally stout. The real differences are torque, fuel economy, range, maintenance costs, and resale value. Here's which six-cylinder fits which driving profile.

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