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What weight of oil should I put in my Cadillac

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10w-40 in cold season and 20w-50 in summer seasons, and fully-synthetic oil is the best type,and i prefer to use castrol gtx or Valvoline( we took apart an engine with 40,000 miles that had been run on penzoil and it was all gummed up with sludge)

Posted on Sep 28, 2010


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What type and weight oil is used in 1996 Cadillac DeVille?

5w30. If you have used synthetic for it's entire life stay with it. If not...use whatever type you want.

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Semper Fi,

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What is the best type of oil to use in a 2004 cadillac escalade 6.0

The best way to find out is call the dealership and ask the service dept. what weight of oil they use ( the brand is up to you). I would recommend on a vehicle of 10 years or more, synthetic oil(but there is a drawback here), once you use synthetic oil, you can Never switch back. The two just don't mix well. Switching to synthetic is fine, just switching back, causes problems. The choice is yours. Myself personally, I like Castrol motor oil, just seems to hold up better, but that's me. I hope this helps.

Jan 21, 2011 | 2004 Cadillac Escalade

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My 2004 Cadilac CTS taps when its cold. What could be the problem?

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I have a 1983 cadillac coupe deville with about 81,000 miles on the engine. car runs great but burns oil. any suggestions?

The only options you really have are. Have the top end rebuilt for new valve stem seals. Or try the syrup in a bottle you by from a local store, which I don't suggest using. But a lot of people use this stuff and it's basically a thick weighted oil and over time isn't good for the engine. With it being an 83 Cadillac, I would have the original engine rebuilt because these original parts are hard to come buy. Good Luck

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Low oil pressure message

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1 Answer

What weight motor oil do i use?

Hello wolfport21: My name is Roger and I will help you. The factory recommended oil is a 15W40 engine oil. I would suggest a low paraffin oil. High paraffin oil caused the rings to stick in the 4.1 engines. If you have a 5.7 engine the oil is the same as the 4.1 engines. Please rate the answer you received. This way we know your answer helped. Thank You for using Fix Ya. Roger

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1 Answer

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