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Read articles →This is a quick, real-world DIY oil change on a Bad Boy 4035 at 187 hours, done by an owner who actually runs the machine hard (cleared a whole fence line with the loader bucket). He drains the 4-quart sump, uses Shell Rotella T4 15W-40, discusses switching to synthetic, and explains his own filter-change interval logic. Useful for owners wanting a plain, no-frills maintenance reference rather than a polished how-to.
Posted by the Ortiz Farm of TC channel, an owner sharing hands-on upkeep from their own property.
The Bad Boy 4035 only uses four quarts, which is one gallon, according to the owner during the oil change.
He uses Shell Rotella T4 15W-40, the same oil he put in before, though he is considering switching to synthetic T6.
The filter is rated for 200 hours, but the owner changed it about 80 hours ago and plans an early oil change in another 50 hours without replacing the filter yet.
A 17mm socket is used to remove the bolt on the small oil pan to drain the oil.
