Replaced my 2008 Touring battery yesterday at Costco, but salesman showed me in the Interstate replacement guide that the battery I bought was not the same as the OEM - the OEM battery has flush vents. Did a Google search for battery flush vents and came up empty. Anyone know what a battery flush vent is, and why only the 2008 Touring uses a battery with a flush vent? I had previously (Dec 2011) replaced the battery with an AAA roadside service, and so didn't know about flush vents until now.