Bowmanville and its Clarington neighbours — Courtice to the west, Newcastle to the east — mark where the GTA fuel market thins out along the 401. Station density drops noticeably east of Oshawa, so the spread between a good price and a lazy one is wider here than closer to Toronto: the King Street and Highway 2 stations in Bowmanville proper compete for local traffic, while the 401 interchange pumps price for travellers pushing on toward Port Hope.
Courtice drivers sit closest to the Oshawa discount market and often do best crossing Townline Road; Newcastle has the fewest options and rarely the low. The list below ranks every Clarington station we track — Bowmanville, Courtice and Newcastle — by current price, refreshed hourly.