Why has my oil pressure reading suddenly started to drop at higher RPMs?
A low pressure reading at higher RPMs can be caused by 3 things: worn rod bearings, the oil pump pickup set too low to oil pan, and debris caught in the pump pickup screen. Have you recently had an intake manifold oil leak on your car fixed (as described in above)? If so, it’s probable that excess RTV sealant has broken off and got sucked into the engine where it’s now lodged in the pickup screen. This will cause oil starvation at higher RPMs. Go back to the dealer and have them check the pickup screen for any clogs.
