How frequently do you change oil in a 2006 Cadillac CTS?

Answer 1

You should follow the recommendation listed in your owner's manual. Or you can follow my recommendations which are every 5,000 miles or 6 months which probably are lower than the manufacture's, if you are using conventional oil. If you are using synthetic oil change it every 8,000 miles. Be sure and change the filter every time and I recommend you use an Ac/Delco filter. Excellent filter that is as good as any. Avoid cheap filters. Do not use any oil additives. Make sure and use the exact weight oil listed in your owner's manual or written on the oil cap. Probably 5w30 or 5w20. The air filter is almost as important as the oil filter. Change the air filter every 30,000 miles. To help avoid a burnt out fuel pump, do not forget the fuel filter. Change it every 50,000 miles.