Cole Purboo scored twice but the Windsor Spitfires continued their slide.
The Oshawa Generals scored three goals in three minutes to break a 2-2 tie in the final period, on their way to a 6-2 win over the Spits Sunday afternoon at Tribute Communities Centre.
It's the sixth loss in a row for Windsor, who are stuck with 50 points and currently hold the final playoff spot in the OHL Western Conference.
Oshawa picked up its first goal late in the first period when Kenny Heuther scored on the power play, assisted by former Spitfire Hayden McCool.
The Generals doubled their lead on a power-play goal by Domenico Commisso at 2:31 of the second period. Purboo then scored both his goals back to back to tie it up before the second intermission. The first goal came from a penalty shot.
After that it was all Oshawa. Heuther scored his second goal of the game at 5:01, followed by another from Commisso. Matt Brassard got the insurance goal exactly three minutes after Heuther found the net again.
Brendan Harrogate put it in the net for good measure, though Windsor's Daniel D'Amico got the goal back before the end of the game.
Brock Baier had 27 saves in goal for the Spits. Kyle Keyser stopped 25 shots out of 28 for the Generals.
Windsor returns home Thursday night and hosts the Guelph Storm.