http://www.300zx-twinturbo.com/cgi-bin/manual.cgi Check out this link. I use this for everything when I work on my 300zx. This exact link will take you right to the section that gives step by step instructions on how to replace the oil pan gasket. Good Luck
By removing the oil pan and cleaning the surface and installing a new gasket.
It can costs anywhere from 10 to 20 dollars to replace an oil pan gasket on a 20045 Nissan Sentra as of 2014. The exact price depends on the seller.
5 quarts of oil
To replace the oil pan gasket on a 2002 Nissan Xterra, first, ensure the vehicle is on a level surface and raise it with jack stands for access. Drain the engine oil and remove the oil pan by unscrewing the bolts around its perimeter. Clean the mating surfaces of the oil pan and the engine block thoroughly before applying a new gasket or gasket sealant. Reinstall the oil pan, tighten the bolts to the specified torque, and refill the engine with fresh oil.
The 2002 maxima has a problem with the oil pan rusting out. Replace the oil pan and gasket and it should be good to go
right by the oil pan, look for it, its not very hard.
When you replace your oil filter it come with a new gasket. Just make sure when you remove / replace the old oil filter the oil gasket comes out with it.
What is a oil cover
With filter: 3-5/8 quarts Without filter: 3-1/8 quarts Source: Nissan 300zx Service Manual
More than likely you have a valve cover leak. You probably need to replace the gasket(s).
I have 255,000 on a 1987 Nissan 300zx and still running strong. As long as you maintain the car and change the oil evry 3000 mi it should last a long time.
Drivers side of the car it is located in the center of the motor.