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4 Posts
Hi everyone, I am getting a dismal 13 or 14MPG in town with my car, G6 GTP 2006 3.9L. I use to get 18 or better in town and I don't believe I have been driving it hard or any different than before. I don't seem to have a problem with gas mileage on the road.
I have been using 89 octane (w/ethonal) and went back to 87 octane to see if that made a different, but it hasn't changed the MPG.
Does anyone have any recommend fuel additives that you have tried to clean out the engine? This car is located/driven in the upper midwest and idling to warm up in the winter is an everyday occurence. This is the first winter I have had this car so there may be some build-up that I need to clean out.
Thanks for any input!
I have been using 89 octane (w/ethonal) and went back to 87 octane to see if that made a different, but it hasn't changed the MPG.
Does anyone have any recommend fuel additives that you have tried to clean out the engine? This car is located/driven in the upper midwest and idling to warm up in the winter is an everyday occurence. This is the first winter I have had this car so there may be some build-up that I need to clean out.
Thanks for any input!