It all depends if it is the transmission or the engine oil filler tubes.
If it is the transmission filler tube, take the oil pan off that will drain the oil, it will be messy and if the cap is not with tne oil, tnen take the dip sgick and push the cap down, the dip stick extens below the rim of the transmission,
If it is the engine oil filler neck tube, with a good flash light try see if you can locate it and get it out.
It Will not go down to the oil pan DO NOT RUN THE ENGINE the cap will stay on the valve gallery and can really do a lot of damage.
Should the cap brake into small pieces by running the engine, severe damage will be done to many components by the plastic debry pluging oil pasages and oil galleries , if the cap can not be retrieved, then the valve cover needs to be removed there is no other way.
navegator
