ImChevrolet's latest Corvette engine has barely had time to establish itself, and there's already an issue getting attention. The all-new 6.7-liter LS6 V8 promises stronger performance, but some early examples may have a problem keeping their oil where it belongs.Introduced for the 2027 Corvette Stingray, Grand Sport, and Grand Sport X, the naturally aspirated V8 represents a major upgrade over the outgoing 6.2-liter engine. With 535 horsepower and 520 lb-ft of torque, it's also the first member of GM's sixth-generation small-block V8 family.Naturally, expectations are high for an engine that will help define the next chapter of Corvette performance. Finding an oil leak underneath a brand-new sports car, however, isn't exactly the ownership experience Chevrolet wants to deliver.According to a General Motors service bulletin published through the National Highway Traffic Safety Administration, certain LS6-equipped Corvettes may develop a small oil leak. Fortunately, the automaker has already identified the likely cause and provided dealerships with repair instructions.Two Small Seals Are Causing The TroubleGM's service bulletin, identified as PIP6132, addresses a potential leak between the engine's oil pan and oil cooler adapter. Technicians may notice oil collecting underneath the vehicle or see bubbling around the adapter's mounting points while the engine is running.The suspected culprits are two high-pressure oil port seals positioned between the oil pan and the cooler adapter. If those seals aren't doing their job properly, engine oil can escape through the connection.The bulletin applies to the 2027 Corvette models equipped with the LS6, although that doesn't mean every engine has the defect. GM says only a limited number of engines may be affected and that the issue has already been addressed.The Fix Doesn't Require Major Engine SurgeryChevrolet instructs dealership technicians to replace both oil port seals when the condition is identified. The oil cooler adapter can be loosened sufficiently to perform the repair without separating the oil cooler from the adapter.GM also emphasizes that the four adapter mounting bolts must be tightened evenly and in the correct sequence. Proper installation is essential to prevent another leak from developing after the new seals are fitted.This is a technical service bulletin, not a safety recall. It provides repair guidance for dealerships encountering the condition rather than requiring every LS6-powered Corvette to return for service.Owners who notice fresh oil underneath their cars should contact a Chevrolet dealership for an inspection. Even a relatively small leak deserves attention, particularly on a new high-performance engine.GM Says The Problem Has Been AddressedIn a statement provided to Road & Track, General Motors acknowledged the potential oil leak and said the problem affects a limited number of engines. The company added that the bulletin reinforces existing service guidance for technicians.The timing is unfortunate for Chevrolet, which has introduced the LS6 as a significant step forward for its naturally aspirated Corvette lineup. Its 535 horsepower and 520 lb-ft represent increases over the outgoing LT2's maximum 495 horsepower and 470 lb-ft.There's no indication that the leak represents a widespread engine failure or requires a major mechanical redesign. It's an unwelcome early issue for the new V8, although replacing two seals sounds far preferable to the kind of repair Corvette owners might initially fear.If you want more stories like this, follow Guessing Headlights on Yahoo so you don't miss what's coming next.