i just bought my 2006 Chevy Cobalt with 74,500 miles on it, from my aunt. I know this car very well, and have done most of the work on it myself. it just hit 75,000 miles so i was wondering if it was possible that it was just letting me know it was due for a tune-up, or if there was an actual underlying problem
a little bit of background: i just did an oil/filter change using 10w-30 (i live in southern California so i need the added viscosity as i don't think it will freeze in the next 3 months), i reset the oil timer on the HUD. i also just changed the spark plugs (first time they had been changed) i gapped them to 0.40 just like the manual says, and they were factory replacement autolite double platinum spark plugs. the car is not misfiring, and as far as i know is running better with the recent work done.
a little bit of background: i just did an oil/filter change using 10w-30 (i live in southern California so i need the added viscosity as i don't think it will freeze in the next 3 months), i reset the oil timer on the HUD. i also just changed the spark plugs (first time they had been changed) i gapped them to 0.40 just like the manual says, and they were factory replacement autolite double platinum spark plugs. the car is not misfiring, and as far as i know is running better with the recent work done.