Do I have to use Synthetic oil in my Cadillac 2006 DTS? Have in excess of 70,000 miles on the car.

Asked by Jul 19, 2017 at 10:37 PM about the 2006 Cadillac DTS Luxury FWD

Question type: Maintenance & Repair

1 Answer

107,675

No, but if that has been what you have been using I would stick with it, there have been some reports of oil leaks happening when switching to convential oils from synthetics. I still run convential oil in my Deville.

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