Cummins offers free interactive ROI calculator

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Cummins is offering a free interactive payback calculator for computing auxiliary power unit cost savings at

The return-on-investment calculator figures in tractor operation and maintenance costs, ComfortGuard APU maintenance costs and purchase price for the resulting annual savings, savings per mile and estimated payback time.

Calculator features include the ability to print out a summary of calculations, and to e-mail a copy of the report.