JJ Keller Entry Level Driver Training for CDL (Commercial Driver’s License) Practice Test 2026 - Free CDL Practice Questions and Study Guide

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What might be a consequence of excessive engine idling?

Increased fuel efficiency

Lower maintenance costs

Higher operational costs for your company

Excessive engine idling can lead to higher operational costs for your company primarily because it consumes fuel without any productive work being done. When a vehicle is idling, it continues to use fuel—contributing to overall fuel consumption that does not result in mileage or productivity. This wasted fuel directly increases costs.

Additionally, prolonged idling can put unnecessary wear on engine components, which can lead to more frequent maintenance needs and ultimately drive up costs associated with repairs and servicing. While some might think idling conserves energy or improves engine performance, in reality, too much idling can be detrimental to both the vehicle's efficiency and to the bottom line of the operation.

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Better performance of the engine

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