Exit 45 [Manetto Hill Rd] Off Ramp from Eastbound Long Island Expressway - Nassau County Highway Patrol and the Plainview Fire Department responded to this exit ramp following a report of an overturned truck. Units arrived to find an overturned tractor-trailer on the shoulder leaking diesel fuel from its load, which was a generator that had an on-board 500 gallon fuel tank. This heavy load took three heavy-duty wreckers to upright. The Nassau County and Hicksville Fire Department HAZMAT teams were requested to the scene to help mitigate the fuel leak. The New York State Department of Transportation and Department of Environmental Conservation were on scene to assist with the effort.