What type of engine oil does Cadillac use?
2 Answers
For turbocharged engines, it is recommended to use 0w40 or 5w40 full synthetic engine oil. For naturally aspirated engines, it is recommended to use 0w30 or 5w30 full synthetic engine oil. Most models under the Cadillac brand are equipped with turbocharged engines, for which 40-viscosity full synthetic engine oil is suggested. There are three types of engine oil: full synthetic oil, semi-synthetic oil, and mineral oil. 1. Full synthetic oil is based on artificially synthesized base oil, so the molecular size and shape of this oil are regular. Full synthetic oil offers excellent lubrication performance and a long service life. 2. Mineral oil is refined from petroleum, and the molecular size and shape of this oil are irregular. Mineral oil has a shorter service life and relatively average lubrication performance. 3. Semi-synthetic oil's lubrication performance and service life fall between full synthetic oil and mineral oil.
When I drive my Cadillac, I usually use full synthetic oil, such as 5W-30, because it provides better engine protection, especially reducing wear during cold starts. Most Cadillac models recommend oils that meet the dexos1 certification. I’ve checked the manual, and it emphasizes this requirement mainly to avoid using mineral oils that could cause carbon buildup or reduced performance. I change the oil regularly every 5,000 miles and opt for reputable brands like Mobil, which makes the car run more fuel-efficiently and quietly. I also pay attention to the impact of temperature changes—higher oil temperatures in summer aren’t an issue since synthetic oil has strong oxidation resistance. Maintenance costs aren’t high, but I never skimp on quality by using cheap, inferior oil to avoid costly engine overhauls.
