5w 20 For the DOHC unless you have the SOHC Spitport engine which takes 5w 30.
According to the 2002 Ford Focus Owner Guide : ( 5W-20 ) engine oil is recommended
Motorcraft oil 5w20
5w/30
no
5w-20
We use Pennzoil 10W30
yes use Mobil1
A Ford Focus needs anywhere from 4.5 to 6 quarts of motor oil. The Ford Focus was fist produced in 1998.
We use Pennzoil 10W-30
PAG 46
i have read on forums that you can it doesn't hurt.
I use 10W-30 Pennzoil. Use 5W in the Winter.