The new holder of the “lowest posted price for regular gas in West Seattle” title is … Shell @ Fauntleroy & Alaska (photo right). It’s been in a price war of sorts with the kitty-corner 76 for a few weeks — one would drop a couple cents, the other would match or edge lower — but suddenly sometime since this morning, the Shell slashed its prices and now sells regular for $2.69. That’s six cents cheaper than the station that had been the low-price titleholder for a while, Arco on Delridge, which is at $2.75.