cuz fords are terrible and leak oil.
Stupid answers are not permitted. Besides that is a lie. You're thinking of Chevy.
A Ford Focus needs anywhere from 4.5 to 6 quarts of motor oil. The Ford Focus was fist produced in 1998.
The 2006 Ford Focus with the 2.3 L engine typically holds about 4.5 quarts of oil when using a standard oil filter. If you are using a larger oil filter, it may require slightly more oil. Always consult the owner's manual or check with a professional for the most accurate specifications.
A four cylinder 2009 Ford Focus hold 4.5 quarts of oil.
According to the 2002 Ford Focus Owner Guide : ( 5W-20 ) engine oil is recommended
In the oil pan, in the engine.
if it is a new ford focus then no, alot of new cars have regulators on them.
diesel
No
The exclamation light, on your Ford focus, is a reference to the oil needs to be changed. The light can be reset by changing the oil.
Remove oil pan
When you change the oil and oil filter.
Motorcraft oil 5w20