Check your manual, 3000-5000 mile intervals. I strongly recommend changing the oil every 2500 or 3000 miles. Oil changes are cheap (especially if you do them yourself) - motors are expensive. Just be sure to dispose of the used motor oil properly if you change it yourself. I take it to our local autoparts store (Autozone). For Improved performance and longevity of your vehicle use Synthetic oils
The 2008 Ford Focus has 16 valves.
According to the 2008 Ford Focus Owner Guide : With engine oil filter change : ( 4.5 U.S. quarts / 4.3 litres of 5W-20 )
The 2008 Ford Focus has an inline 4 engine.
The 2008 Ford Focus has a 5-speed manual.
The 2008 Ford Focus is a gas-powered vehicle.
The 2008 Ford Focus's turning circle is 34.2 ft..
The 2008 Ford Focus is 14 ft. 7 in. (175 in.) long.
The 2008 Ford Focus has double overhead cam (DOHC).
The 2008 Ford Focus runs on regular unleaded.
The height of the 2008 Ford Focus is 4 ft. 10.6 in. (58.6 in.).
The curb weight of the 2008 Ford Focus is 2588 lbs..
The 2008 Ford Focus has a drag coefficient of .32 Cd.