I used 5wXX, I think it was 5w20, with good results on mine. What4ever was listed in the owner's manual. I always changed the oil regularly, at between 3000 and 5000 miles, so used regular oil not synthetics.
It is Attached to the oil filler cap
4.25 quarts (4 liters).
5w30
try taking off the oil filler cap at the top of the engine...on my '95 turbo 900s that's where it was, the oil stick was attached to the oil filler cap.
Have you opened the large oil filler cap at the top of the engine? Although I don't know about a 9 3, on my '95 turbo 900s that's where it was...built into the cap.
Presuming you are asking about the 5-speed and not the automatic.It is on the bottom of the transmission, and is recessed. It requires a special tool.Later 900s did not have a drain plug for the transmission.
Go to saabnet.com. Answers there.
That SAAB is so old that it does not matter much, get the best (most expensive) that you can reasonably afford. The motor and manual transmission should get a mineral 10W-40 An automatic transmission TEXAMATIC 9330 If you have a diferential: MULTIGEAR MTF 75W-80W
Always use synthetic.
Never..... unless you live where the temp does not fall below 40 degrees, and it is already burning oil, as in blue smoke out of the tail pipe. I have a 93 900s with 198K always use 5w30.
mobil oil clean and efficent
5W30 oil.