A truck engine does not need to idle all night to keep the sleeper comfortable.
APU Monster allows drivers to use climate control, lighting, appliances and charging power while the main engine remains off.
That means less diesel burned, fewer unnecessary engine hours and more money kept in the business.
Every hour without unnecessary idling is an opportunity to save.
The exact savings depend on fuel price, nightly idle time, climate, truck configuration and how the system is used.
For drivers who spend many nights on the road, those savings can add up to thousands of dollars over time.
Fuel savings are only part of the benefit. Reducing idle hours may also help lower engine wear, maintenance requirements and depreciation caused by unnecessary engine operation.
Adjust the assumptions to match your own operation. Every figure below is editable — this is not a fixed estimate.
Optional — leave at $0 if the system is recharged by the truck alternator while driving. Raise it only if you're estimating shore or grid power use.
Plus the potential value of fewer idle hours, reduced engine wear and lower maintenance costs.
Estimates are provided for planning purposes only. Actual savings depend on fuel prices, climate, truck condition, usage patterns and installation configuration. Maintenance and reduced engine-wear savings are not included unless clearly stated.
Nightly idle hours × nights on the road × fuel used per idle hour × diesel price
Estimated energy used by the APU system during the same period
Current idling cost minus estimated APU operating cost
Your estimated savings over one year based on the information entered