Hi everyone, new to the forums. Here's my first question: I drive my 2011 CT from basically April 1st to maybe the first week of December, then into storage it goes for the snowy Chicago winter. While in storage, (Once a month) on a decent day I will drive it around for a few miles to keep the Hybrid battery from completely draining. Could I go with an once a year oil change? For instance, if I do it say in June? It seems like a waste to be changing oil in both April and October like I've been doing. What do you guys think?