Hi listees, I have a 1988 1.8i Jetta . For 3 months now I have had my change oil level show just afer 45 days of oil change. The 2nd it appeared after 40 days. The last time it appeared after 30 day. MPG ofcousrse has worsened while oil level has increased . My mechanic says it might be due to fuel valve/regulator fault. Please help is urgently needed. Thanks Ifeanyi