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The 2003 Dodge Ram 2500 5.7 Hemi uses 5w-30 oil and needs 7 quarts during an oil change. It's advised to have your oil changed every 3,000-5,000 miles or annually, whichever comes first. Regular oil changes can extend engine life, improve gas mileage, and boost performance. A timely oil change helps eliminate engine-clogging particles and sludge. Neglecting oil changes can lead to engine issues as the oil breaks down and becomes harmful to engine components over time.
Can I safely use 10w/30 high mileage oil in my vehicle?
The 2003 Dodge Ram should use 5w-30 oil as per the manufacturer's recommendation.
The specified oil for the 2003 Dodge Ram 2500 5.7 Hemi is 5w-30.