Personally, I would just change the oil, drive it 20 miles, and change the oil again to get out any of the remaining mess. If sludge was really your problem there are products you can buy and use to remove sludge form your engine.
Wildwood, Florida. Wildwood is a city in Sumter County, Florida, United States. The population was 3,924 at the 2000 census. According to the U.S. Census Bureau's 2004 estimates, the city had a population of 3,598. Contents.
Melrose, Florida. Melrose is an unincorporated community in Alachua, Bradford, Clay, and Putnam counties in the U.S. state of Florida. It lies on State Road 26, approximately 30 km (19 mi) east of Gainesville and approximately 80 km (50 mi) southwest of Jacksonville. The town lies on Lake Santa Fe and the Santa Fe River.