Oil leak above filter

[rmhambrice]

New to this forum but pretty active on another for my car, this one is my wifes. Having a problem with an oil leak near the filter (2008 Aura 3500 engine) thought it was the filter being loose but now looks like it is above that. You can see a drop of oil on the bolt above and to the right of the filter. Looked for a diagram or exploded view of the engine to try and determine what it could be with no luck. any help?


under pressure it comes out as a fast drip.

[1988GTU]

Oil pressure sending unit could be leaking or it could be the 'front' rocker-valve cover.