CHARLOTTE, N.C. -- NASCAR may be considering adding a dirt race at Eldora Speedway to its Truck Series schedule.

Multiple sources within the series said they've been told a dirt track could be added to the schedule in 2013. Sources also said a Richard Childress Racing truck was prepared for a test at Eldora, owned by three-time Sprint Cup champion Tony Stewart.

The test was scheduled to take place Monday or Tuesday, the sources said. Officials at Eldora could not be reached for comment.

Stewart has been asking NASCAR to add a race at his half-mile track in Rossburg, Ohio, for several years. It is the site of his annual Prelude to the Dream charity event.

NASCAR officials declined to address specifically whether Eldora was under consideration for a truck race, but the series is looking at potential venues it hasn't been to before.

"We've made several site visits over the past few months to look at possible future venues for our Nationwide and Camping World Truck Series," spokesman Kerry Tharp said on Tuesday. "We expect the 2013 schedules for both of those series to be finished up and released within the next couple of weeks."