Hey guys,

We're looking for some help with our F4i engine. We're using the engine in our FSAE competition car and we are in the middle of dyno testing as we speak. However, we are experiencing problems with fuel leaking into our oil. We aren't running too rich, and the compression is ~170 kPa for all cylinders. Besides bad piston seals (which I somewhat doubt since we have fairly high compression), do any of you have any ideas what may be causing this? Thanks