Okay....so I wouldn't normally ask NS, but another opinion is always appreciated. I have an '04 Outback, 98k mi. on it. Since its approaching 100k and I haven't had it looked over since last summer I figured it was time for a routine visit. I also needed my tires balanced and an alignment. Regardless, they did all the basic stuff, checking fluids adding where necessary and just making sure everything is all a-ok.
So I leave the shop and everything is fine, and I need gas. My friend says, "put Shell in, its great gas." I don't normally pay attn to what kind of gas I use, just my normal Hess/Citgo, so I didn't have preference. Hours later, I'm getting this engine problem - happens when I'm at a low speed, stopped or slowing down then accelerating, I get a lag - or pull. Like my engine is almost stalling/coughing? Hard to explain. And its not one single cough, its a couple. And its when I push lightly on the gas (auto, not stick)...if I pushed harder it gets past it to normal acceleration. And of course on my drive home today, the check engine light comes on. I'm having it hooked up to a computer to show whats wrong, but any clues on what might be wrong would be sweet. Would it have to do with gas (water) or something completely unrelated? Its just crazy that I just had it at the shop, now I'm having an engine issue. I've put 100+ miles on it since the shop (I travel to work)...so I have no clue what to think. Halp.