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The 2009 Jeep Wrangler comes with a 3.8-liter V6 engine that has an oil capacity of 6.0 quarts. Jeep advises using oil that meets the API certification and the Chrysler material standard mS6395. The manufacturer recommends using SAE 5W-30 engine oil for the truck, with the preferred OEM option being Mopar Maxpro. For off-road driving or harsh terrain conditions, it is suggested to change the oil every 3500 miles to maintain engine oil quality. However, for regular road use, you can opt to change the oil every 7000 miles if you use full synthetic oil. Full synthetic oil helps to preserve engine components like pistons and cylinders by providing superior fluidity.
The 2009 Jeep Wrangler can hold up to 6.0 quarts of engine oil. For best performance, Jeep suggests using oil that is API Certified and meets Chrysler Material Standard MS-6395 specifications.