Circle K
E85E15
34 Centennial Blvd, Highlands Ranch, CO 80129
Latest test 70% ethanol · Mar 7, 2026
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Circle K at 34 Centennial Blvd is the only E85 station E85 Scout tracks in Highlands Ranch, Colorado. It sells E85 and E15. Its latest approved community test read 70% ethanol on Mar 7, 2026. If it's out of E85, the nearest alternative is in Centennial, about 3.9 mi away.
The E85 station in Highlands Ranch
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Frequently Asked Questions
Where can I get E85 in Highlands Ranch, CO?
E85 Scout tracks one E85 station in Highlands Ranch: Circle K at 34 Centennial Blvd, Highlands Ranch, CO 80129. The nearest other E85 is in Centennial, about 3.9 mi away.
What ethanol percentage is the E85 at Circle K?
The latest approved community test at Circle K read 70% ethanol on Mar 7, 2026. E85 can legally contain anywhere from 51% to 85% ethanol and winter blends run lower, so check E85 Scout for the newest result before you fill up.
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Data sourced from NREL and the E85 Scout community. Station data last changed: 2026-10-01.