What oil does my car need?

it is ford focus 2003 with 77779 milesWhat oil does my car need?
I use conventional 10w40. It's pretty standard. I think your instruction manual might give you a suggestion for weight of oil.What oil does my car need?
Excerpt from your Owners Manual:





SAE 5W-20 engine oil is recommended.


Only use oils “Certified For Gasoline Engines” by the American Petroleum Institute (API). Use Motorcraft or an equivalent oil meeting Ford specification WSS M2C153–H. SAE 5W-20 oil provides optimum fuel economy and durability performance meeting all requirements for your vehicle’s engine. Do not use supplemental engine oil additives, oil treatments or engine treatments. They are unnecessary and could, under certain conditions, lead to engine damage which is not covered by your warranty. Change your engine oil and filter according to the appropriate schedule listed in the scheduled maintenance guide [every 5000 miles is recommended]. Ford production and aftermarket (Motorcraft) oil filters are designed for added engine protection and long life. If a replacement oil filter is used that does not meet Ford material and design specifications, start-up engine noises or knock may be experienced. It is recommended you use the appropriate Motorcraft oil filter (or another brand meeting Ford specifications) for your engine application.
Well, seems that everyone is suggesting 5w30, whch seems pretty good. You really DO NEED to check to make sure it's the specific one. Old cars, back in the ancient 1960s to 1980s could use 10w30 or 10w40, which are standard oils. But engines are made so much more precise that you need very specific oils now, you can't just put in any weight to have the car last any long time. Call the Ford dealer and ask them to be sure.





But now, what brand?? I suggest Castrol. I've had excellent use of it, altho' I haven't used it for long time, gong with cheapo walmart oil. The walmart oil is okay, but Castrol has proven to be much better. It's little more expensive, but well worth it. When I use Castrol, I can feel the engine runnng easier and smoother, and it has meant better gas mileage for me, too.


Some people like older oils like Penzoil, Quaker, but I stay away from them.


There are diff kinds of Castrol oil---such as for high performance, or Suv, or for hgh mileage engines. But just go with the regular Castrol. I think you'll find it quite good stuff. But everyone has their favorites and their junk. But I think Castol is one of the best.
this is why i left the automotive section, too many stupid people giving blatantly wrong answers, 10w40 will kill that engine, 5w20 is correct, but try also looking at your oil cap, it will tell you if its 5w20,
With your current mileage.... 5W30 should be acceptable. The original oil was 5W20. but at almost 80K.... go with the 5W30.
I would go with the 5W-30 and preferably synthetic! The synthetic will help maintain your car's overall long-term reliability
The dealerships us 10w40 in their Ford engine. With age on it us 10w50.
It should be 5w-30. Almost all cars since the late 90's use 5w 30.
10w30 will work just fine.
5w-30
5-30
call triple aaa