On Oldsmobile royal the freeze plug is located behind the motor,you have to remove the motor from the engine system out.
See the diagram below showing its location image:-----
There are in total two freeze plugs:---
This will help.
Thanks.
See below latest help solutions:----
How to replace freeze plug on GMC Sierra?
http://technoanswers.blogspot.in/2012/02/how-to-replace-freeze-plug-on-gmc.html
Clutch squeaking under hood?
http://repairhelpcenter.blogspot.com/2012/01/clutch-squeaking-under-hood.html
Engine stalls when gas is given?
http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html
1990 mazda 323 stalls and quit running?
http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html
Nissan car will not start?
http://technoanswers.blogspot.in/2012/02/nissan-car-will-not-start.html
Honda car will not start intermittently?
http://technoanswers.blogspot.in/2012/02/honda-car-will-not-start-intermittently.html
http://technoanswers.blogspot.in/2012/02/toyota-car-will-not-start.html
Cooling fan relays location on 1998 ford mustang?
2009 Chevy impala accelerator pedal sensor?
http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html
1994 ford E150 Timing problem?
http://technoanswers.blogspot.in/2012/02/1994-ford-e150-timing-problem.html
Cruise control stop working on 1994 Ford ranger?
http://technoanswers.blogspot.in/2012/02/cruise-control-stop-working-on-1994.html
Ford explorer 4.0 will not idle when cold?
http://technoanswers.blogspot.in/2012/02/ford-explorer-40-will-not-idle-when.html
Water flowing back into overflow tank?
http://repairhelpcenter.blogspot.in/2012/02/water-flowing-back-into-overflow-tank.html
Jeep starts with key in on position?
Jeep Backfires?
http://technoanswers.blogspot.in/2012/02/jeep-backfires.html
Nissan Pathfinder stalls and bucks on Acceleration?
Nissan Pathfinder Backfires?
Car not starting?
http://repairhelpcenter.blogspot.in/2012/02/car-not-starting.html
Car will not start?
http://repairhelpcenter.blogspot.in/2012/02/car-will-not-start.html
How i solved SRS and AIRBAG OFF light problem on Mercedes ML270?
http://technoanswers.blogspot.in/2012/02/how-i-solved-srs-and-airbag-off-light.html
How to test Power mirrors on
http://repairhelpcenter.blogspot.in/2012/02/how-to-test-power-mirrors-on-toyota.html
Replace door stay assemblies on
http://repairhelpcenter.blogspot.com/2012/01/replace-door-stay-assemblies-on-toyota.html
Dash board lights not working on GMC
http://repairhelpcenter.blogspot.in/2012/02/dash-board-lights-not-working-on-gmc.html
Stereo goes to Phone mode on
http://technoanswers.blogspot.in/2012/02/stereo-goes-to-phone-mode-on-lincoln.html
How to Inspect breather filter?
http://repairhelpcenter.blogspot.in/2012/02/how-to-inspect-breather-filter.html
How test cam shaft? Testing Car Camshaft?
http://repairhelpcenter.blogspot.in/2012/02/how-test-cam-shafttesting-car-camshaft.html
Acceleration lag problem?
http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html
See the diagram below showing its location image:-----
There are in total two freeze plugs:---
This will help.
Thanks.
See below latest help solutions:----
How to replace freeze plug on GMC Sierra?
http://technoanswers.blogspot.in/2012/02/how-to-replace-freeze-plug-on-gmc.htmlClutch squeaking under hood?
http://repairhelpcenter.blogspot.com/2012/01/clutch-squeaking-under-hood.html
Engine stalls when gas is given?
http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html
1990 mazda 323 stalls and quit running?
http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html
Nissan car will not start?
http://technoanswers.blogspot.in/2012/02/nissan-car-will-not-start.html
Honda car will not start intermittently?
http://technoanswers.blogspot.in/2012/02/honda-car-will-not-start-intermittently.html
Toyota car will not start?
http://technoanswers.blogspot.in/2012/02/toyota-car-will-not-start.html
Cooling fan relays location on 1998 ford mustang?
http://technoanswers.blogspot.in/2012/02/cooling-fan-relays-location-on-1998.html
2009 Chevy impala accelerator pedal sensor?
http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html
1994 ford E150 Timing problem?
http://technoanswers.blogspot.in/2012/02/1994-ford-e150-timing-problem.html
Cruise control stop working on 1994 Ford ranger?
http://technoanswers.blogspot.in/2012/02/cruise-control-stop-working-on-1994.html
Ford explorer 4.0 will not idle when cold?
http://technoanswers.blogspot.in/2012/02/ford-explorer-40-will-not-idle-when.html
Water flowing back into overflow tank?
http://repairhelpcenter.blogspot.in/2012/02/water-flowing-back-into-overflow-tank.html
Jeep starts with key in on position?
http://technoanswers.blogspot.in/2012/02/jeep-starts-with-key-in-on-position.html
Jeep Backfires?
http://technoanswers.blogspot.in/2012/02/jeep-backfires.html
Nissan Pathfinder stalls and bucks on Acceleration?
Nissan Pathfinder Backfires?
Car not starting?
http://repairhelpcenter.blogspot.in/2012/02/car-not-starting.html
Car will not start?
http://repairhelpcenter.blogspot.in/2012/02/car-will-not-start.html
How i solved SRS and AIRBAG OFF light problem on Mercedes ML270?
http://technoanswers.blogspot.in/2012/02/how-i-solved-srs-and-airbag-off-light.html
Airbag and srs light off on Mercedes ml 270?