Oil change interval recommendation

If you want more concrete evidence of how long you can effectively extend your OCI's, consider getting a few used oil analysis to build a trend.

If you use a full synthetic, start with a 3,000 mi/6 month interval, then extend or retract based on fuel dilution, TBN & TAN, wear metals, etc.

If your oil remains serviceable, move to 4,500 mi/9 months, then 5,000 mi/1 year.