I am in cape Verde islands, very hot here. What oil should I use on a 2004 buick rendezvous 6 cilinder awd 3.4
GM recommends 5W-30 synthetic or 10W-30 petroleum based oil. If you are driving in heavy traffic on a daily basis I would certainly stick with the synthetic, a bit more expensive but worth every penny for protection.
5w30, either syn[changed @10k] or dino @5k. New filter with each change. Live here in USA desert
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