If you look on the front of the engine, the engine number is etched in to the block next to the gearbox bellhousing.
Plse look atwww.zetecinside.com/xr2/stepbystep.shtml
lighter fuse can be found by removing passenger side glove box, you will find a panel in there with around 20 fuses and a good few relays, i had to phone ford after checking box in engine only to find out there is another panel behind glove box
SPI engine: 4.0 Quarts (3.78L) Zetec engine: 4.5 Quarts (4.25L) Ford recommends SAE 5W-20 oil for both.
According to the 2002 Ford Focus Owner Guide : For the 2.0 litre SPI engine and the 2.0 litre Zetec-E engine : ( 5W-20 )
According to the 2002 Ford Escape Owner Guide : With engine oil filter change : The 2.0 liter Zetec four cylinder engine takes ( 4.5 U.S. quarts of 5W-20 ) The 3.0 , Duratec V6 , takes ( 5.5 quarts , 5W-20 )
5w-20
According to the 2002 Ford Focus Owner Guide : With engine oil filter change : The 2.0 liter SPI engine takes ( 4.0 U.S. quarts of 5W-20 ) The 2.0 , Zetec- E engine ( 4.5 quarts )
http://www.focushacks.com/images/pcv.jpg Here's a picture to locate it.. So, when looking at the engine from above, on the right of the exhaust. Now, how to remove this, is another question.
According to the 2002 Ford Focus Owner Guide : With engine oil filter change : The 2.0 litre SPI engine takes ( 3.78 litres / 4.0 U.S. quarts of 5W-20 ) The 2.0 litre Zetec engine takes ( 4.25 litres / 4.5 U.S. quarts of 5W-20 )
5W-20 , according to the Owner Guide =========================================================== Just adding to the answer : With engine oil filter change the 2.0 liter Zetec four cylinder engine in a 2004 Ford Escape takes ( 4.5 U.S. quarts ) * 5W-20 as mentioned above
According to the 2003 Ford Escort Owner Guide : With engine oil filter change : The 2.0 liter DOHC , Zetec engine takes : ( 4.5 U.S. quarts of 5W-20 )
According to the 2001 Ford Focus Owner Guide : With engine oil filter change : The 2.0 litre SPI engine takes ( 3.78 litres / 4.0 U.S. quarts of 5W-20 ) The 2.0 litre Zetec-E engine takes ( 4.25 litres / 4.5 U.S. quarts of 5W-20 )
According to the 2003 Ford Focus Owner Guide : With engine oil filter change : The 2.0 litre SPI engine takes ( 3.78 litres / 4.0 U.S. quarts of 5W-20 ) The 2.0 litre Zetec - E engine takes ( 4.25 litres / 4.5 U.S. quarts of 5W-20 )