Oil change frequency

MrTools

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2002 Tahoe, 5.3L, 213K, doesn't burn oil. Manual says 5K for oil changes using conventional 5W-30 oil, which is what I've done for the past 150K since owning it. If I were to start using a full synthetic oil could I bump the change interval to ~7500 between changes? Car gets about a 50-50 mix of city & highway driving. Appreciate your thoughts.
 

zora

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That's only 2,500 more so should not be an issue. Just check oil level periodically to avoid any surprises.
 
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