PowerBoost UOA Kirkland 5W-30 @ 9,900 mi -- Blackstone Oil Analysis Report

[imnuts]

I'd only consider shorter intervals if I were towing/hauling more than 10-20% of the time. Just DD duty, road trips, and home improvement runs, I don't see any reason to go earlier than the truck tells you too.

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[Atlee]

I'd only consider shorter intervals if I were towing/hauling more than 10-20% of the time. Just DD duty, road trips, and home improvement runs, I don't see any reason to go earlier than the truck tells you too.

And that's why I change my oil at 5K intervals. 50% plus of my mileage is towing. That falls under the "severe" category per my owner's manual.