GM Released Service Bulletin for 2027 Corvette Oil Leaks
Owners of 2027 Chevrolet Corvettes with the LS6 engine should check for oil leaks at the cooler adapter.
Updated on Oct. 5, 2026 in Performance Vehicles
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General Motors issued service bulletin PIP6132 in September 2026 to address oil leaks found in the 6.7-liter LS6 V-8 engine of 2027 Chevrolet Corvettes. This update is a service bulletin rather than a formal vehicle recall.
Why it matters
The leak occurs between the oil pan and the oil-cooler adapter, which can lead to visible oil bubbling while the engine is running. Addressing this issue promptly protects the integrity of the engine, which produces 535 horsepower and 520 pound-feet of torque.
Service bulletin PIP6132 applies to all 2027 Chevrolet Corvette models equipped with the 6.7-liter LS6 V-8 engine. The 2027 Corvette carries a starting price of $73,795.
The players
General Motors
The manufacturer of Chevrolet vehicles known for producing the Corvette performance line and maintaining a nationwide dealer network.
Chevrolet
A division of General Motors that produces the Corvette, a flagship performance vehicle with a starting price of $73,795.
The details
The oil leak develops at the junction between the oil pan and the oil-cooler adapter. To correct the issue, a technician must replace two high-pressure port seals and tighten four oil-cooler adapter bolts following a specific, manufacturer-mandated sequence to ensure a proper seal.
Timeline
GM issued service bulletin PIP6132 in September 2026.
The Home Front
This bulletin concerns the cooling architecture of the 6.7-liter LS6 V-8 engine, a central component of the 2027 Chevrolet Corvette's performance profile. The service notice follows a standard pattern of refined engineering adjustments for new high-performance engine platforms.
If you own a 2027 Chevrolet Corvette, look for oil bubbling around the oil-cooler adapter while the engine is running. Contact a local service center to have a technician inspect the adapter bolts and seals according to the procedures outlined in bulletin PIP6132.
The takeaway
Service bulletins are distinct from safety recalls and serve as guidance for technicians to address specific performance issues. Ensure you monitor the area around your vehicle's oil-cooler adapter if you own a 2027 model, and consult a professional for any necessary seal replacements.
Further reading
Find more guidance on maintaining high-performance engines in our Performance Vehicles section.
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