SSM 47387
2018 Mustang
GT350 – Perceived Oil Leak At Engine Oil Drain Plug During VehiclePre-Delivery Inspection
Some 2018 Mustang GT350 vehicles may exhibit what appears to be an oil leak originating from the engine oil drain plug, especially at the time the vehicle has been delivered to the dealer or during PDI.
Before attempting any repairs to resolve this, it’s advised to confirm that there is actually a persistent oil leak.
The normal production process used to build the engine may result in a small amount of residual oil on the oil pan near the drain plug.
Additionally, the design of the drain plug may cause a small amount of oil to be trapped in the drain plug bore after an oil change, and this oil may seep out a short time after an oil change.
This may also cause the appearance of a persistent leak from the drain plug.
No action needs to be taken unless the leak persists.
SSM 47387
- Mobil 1 advanced full synthetic motor oil 15W-50 helps to protect your engine from the five factors that can damage engines over time
- Helps to protect critical engine parts for up to 10,000 miles between oil changes*, controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
- Provides low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean
- Helps extend engine life by working to prevent damaging deposits and sludge buildup
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperatures (to -40 degrees F)
- For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
- For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
Last update on 2026-06-04 / Affiliate links / Images from Amazon Product Advertising API
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