i have an oil leak that looks like its comming from behind the optispark i replaced a while back. It only seems to leak while its runnig bc theres no oil in the driveway when its sittin. Dont know if its bc of the opti install or jst getting old 103,000 miles. it loses a qt a week drive about 300 miles a week

 

Clean the front of the motor as best you can, get some oil dye and use a blacklight to find the source of your leak.