I have 56K miles on my 2014 CX-5 Touring FWD. I have had no issues since I bought it and did regular oil changes (every 7-9K miles). I recently notice that the car doesn't run smooth now. I drive in stop-n-go traffic in California Bay Area often. Or even on daily errands, when I slow down and then press the gas pedal, the car doesn't smoothly accelerate.
There is a fraction of second lag it seems and then seems to suddenly get more power. Or it appears as if the gas pedal is hard. Or if I ease my foot off the gas pedal then it doesn't gracefully slow down. My gas mileage has also reduced though granted that traffic is worse these days. I used to get 30-31 mpg in mixed driving conditions but only get 27-28 mpg. Things are roughly the same.
So I am wondering if something is going wrong? I do not go to expensive gas stations and feel that I buy from top tier gas stations but may be buying from cheap ones for sure (unbranded ones). Can I figure something out before bringing to the dealer and/or local service shop and have them charge me $$ to just diagnose?
Should I try adding something like BG44K or similar to try and see if it makes any improvements? Thanks for reading my long post and your suggestions/advice.
Maybe has something to do with the accelerator being out of sync with something. Maybe look around the pedal area and make sure there's no dirt or debris causing the pedal to bind up.