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Is it More Economical to Drive at Low RPMs?

Published January 28, 2026, 07:22
Is it More Economical to Drive at Low RPMs?

Maintaining low engine RPMs is an effective strategy for fuel economy. By keeping the RPMs below half the maximum limit and avoiding sudden accelerations, drivers can significantly reduce fuel consumption and save money. However, excessively low RPMs can cause problems for the engine, such as increased vibrations and wear on peripheral parts. It is important for the driver to know the RPM range where the engine performs best, i.e., where maximum torque is achieved. In modern turbocharged engines, maximum torque is usually achieved at lower RPMs (below 2,000 RPM), making economical driving easier. But running the engine at very low RPMs while trying to accelerate can increase consumption and strain the engine. Furthermore, driving for long periods at low RPMs can negatively affect particulate filters, as these require higher RPMs to self-clean. Failure to self-clean can lead to filter damage and significant financial burden.