How do I tell if the oil change was successful after completing the job?
Documented on the 1965 Ford Mustang build
Published August 3, 2026
After refilling, start the engine and look for leaks around the drain plug and filter.
Full Answer
After refilling, start the engine and look for leaks around the drain plug and filter. Check the oil pressure light/gauge, let the engine reach operating temperature, and recheck the dipstick level after a few minutes. Reinspect for leaks after a short drive.
Documented In This Build
Related Knowledge
What oil viscosity should I use for a 1965 Mustang?How much oil does a 1965 Mustang take?What if the drain plug or pan threads are stripped?How tight should I torque the drain plug and oil filter?What torque should I use on the driveshaft flange bolts?What safety steps should I take before starting?How should I protect and organize the new wiring?Can I keep the original radio and still add Bluetooth?
Related Parts
Engine oil (5 qt)
Mobil 1 (example)$40
Oil filter
Motorcraft (or equivalent)$12
Drain plug crush washer/gasket
$1
Replacement oil drain plug (oversize/standard)
$10
Related Tools
Floor jack
Jack stands
Socket set and ratchet
Shop rags and gloves
Oil drain pan
Funnel
Oil filter wrench
Thread tap / bolt extractor / helicoil kit
Torque wrench





