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Impala While undergoing many facelifts in its history, the Impala has proved itself to both civilians and police forces as one of the most capable 4-door cars GM has ever offered. Currently moving towards its 10th generation the Impala is one of the longest lasting and popular models.

2014 Chevrolet Impala
Includes: Bel-air
Platform: B-body & W-body

Oil Weight

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Old January 23rd, 2010, 11:35 AM
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2003 chevy impala V-6. What weight oil is recomended?
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Old January 23rd, 2010, 6:59 PM
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go with waht your owners manual says. My Silverado calls for 5w30, Thats pretty light i think for a truck like mine. But 5w30 is prolly what your car takes.
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Old January 23rd, 2010, 7:08 PM
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Yeah, most of the 3.4's and even the 3.8's go with 5w30. Tried 10w30 and didn't like the cold weather starting sounds, so went back to 5 weight. I like Mobile1 myself and always a new filter.
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