Groves City is contemplating the purchase of a new snow plow to replace its old plow that was purchased 3 years ago. Information related to the two plows is provided below:

	Old Plow	New Plow
Purchase price of plow	$ 40,000	$ 30,000
Current salvage value	$ 18,000	---
Accumulated depreciation	$ 5,000	---
Remaining useful life	5 years	5 years
Annual operating costs	$ 13,000	$ 8,000

Over the next 5 years, how much will Groves City be able to save by buying the new snow plow?