LOOK TOWARD THE REAR OF THE OIL PAN.
The radiator petcock drain on a 1999 Pontiac Bonneville is on the bottom of the radiator. Look for a small black plug that looks like the plug found on a thermos or cooler.
Look at the bottom or rear of the radiator
drivers side bottom right of radiator remove shield and look for plug
There should be one on the left side bottom of the radiator. There probably isn't going to be one. Maufacturer's started eliminating the drain plug to save on production costs in the late eighties.
It is on the bottom of the engine block, just a normal hex bolt.
The 1992 V-6 Pontiac Sunbird radiator drain plug, is located on the bottom of the radiator. The drain plug can be removed with a 5/8 socket.
SPARK PLUG GAP1992 Pontiac Bonneville 3.8L SFI OHV 6cylThe Spark Plug Gap.060 (In thousandths of an inch) Caution! Gap is not adjustable on certain plug brands
simple..... drain oil from drain pan and change filter a small plug on the pan is what your looking for
where is the plug to drain the oil in a 2005 Pontiac vibe
its below the steering wheel towards the right, its a litle plug-in
0.060 inch {1.52mm}
Standard V-6 will be 0.06