I would start with 4.25 qts. It may take 4.5 qts of oil. IIRC, the dipsticks on these cars can be tricky to read.
The gas tank on the 2001 Nissan Maxima holds 18.5 gal..
The 2001 Nissan Maxima has 24 valves.
The 2001 Nissan Maxima has a V6 engine.
The 2001 Nissan Maxima has a 5-speed manual.
The 2001 Nissan Maxima is a gas-powered vehicle.
The height of the 2001 Nissan Maxima is 4 ft. 8.5 in. (56.5 in.).
The 2001 Nissan Maxima is 15 ft. 10.5 in. (190.5 in.) long.
The 2001 Nissan Maxima has double overhead cam (DOHC).
The oil capacity depends on the year of the car. For the Nissan Maxima: 1984-1988 4.1 quarts 1989-1993 3.7 quarts 1994 SOHC 3.7 quarts; DOHC 3.6 quarts 1995-2001 3.9 quarts 2002-2006 4.5 quarts 2007-on No data yet; check your owner's manual
The 2001 Nissan Maxima has 56.9 in. of front shoulder room.
The 2001 Nissan Maxima has 37.4 in. of rear head room.
The 2001 Nissan Maxima runs on premium unleaded (required).