what year GTO?, need more information to answer your question.
Pf 25 would be the standard replacement , but if you would like and have the room depending on the oil filter housing angle (exhaust headers)you can also use a pf11 which is a 1 quart filter
Oldsmobile V8/1962 TO 1977
firebird 1978 400 engine pontiac
A 1997 Pontiac Sunfire has an AC Filter located in the cabin. The filter can be found behind the glove compartment and is used replaceable.
Any major brand 5w20 oil. The filter is just as important as the oil. Use a name brand filter such as AC/Delco, Purolator, & Wix. Click the link to my blog where I discuss changing your oil.
Remove the old filter. Apply a coat of oil to the gasket of the new filter. Screw the filter on and tighten it 3/4 turn after it makes contact with the mounting surface. Caution: (Tighten it 3/4 turn, no more, no less!) I recommend you use an AC/Delco filter, which is an excellent filter and is the OEM filter on your Pontiac.
10w30 any major brand. I recommend you use an AC/Delco, Purolator, Wix, or Bosch filter.
Use the one that fits. Anyplace that sells filters can tell you the correct filter. AC/Delco, Purolator, & Bosch are all quality filters.
The 2002 Pontiac Bonneville equipped with 3800 Series II engine has an oil and filter capacity of 4.5-quarts. The AC Delco oil filter part number for this application is PF47. The larger and higher capacity PF52 filter will also work on this engine.
5w30 major brand. I personally use Pennzoil, and have for 25 years with no internal engine problems. Just as important is the oil filter and air filter. Replace the air filter every 30,000 miles. Replace the oil filter at every oil change every 5,000 miles. I recommend you use an AC/Delco filter. Top rated filter that will provide excellent protection and flow. If you cannot find an AC/Delco use a Purolator or Wix filter.
STP OIL FILTER S3675
pf46e