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In order to keep the 2003 Kia Sorento engine running smoothly, it is recommended to use SAE 5w-30 fully synthetic motor oil. The vehicle's 3.5 liter V6 engine requires 4.6 quarts of oil. You can easily find one-quart bottles of oil at retail stores, automotive shops, and online stores at prices ranging from $3 to $15 per container. To perform an oil change, start by draining the old oil from the nozzle valve at the bottom of the reservoir. Next, remove the top cap and carefully pour in four quarts of fresh oil using a funnel. Finally, secure the cap in place and close the hood.
The 2003 Kia Sorento with the standard 3.5L V6 engine should have 4.6 quarts of synthetic oil in it. Depending on the driving and weather conditions, Kia recommends different oil viscosities: for temperatures below 14°F, 5W20 should be used; for temperatures below 50°F, 5W30 is recommended; for temperatures below 68°F, 5W40 is required; for temperatures between -25°F to 40°F, you should use 10W30; for temperatures above -13°F, 10W40 or 10W50 is recommended; for temperatures above 5°F, opt for 15W40 or 15W50; and for temperatures above 14°F, use 20W40 or 20W50.