According to the 2002 Mercury Sable Owner Guide ( 5W-20 )
With engine oil filter change :
The 3.0 litre " Vulcan " V6 engine takes ( 4.25 litres / 4.5 U.S. quarts of 5W-20 )
The 3.0 litre " Duratec " V6 engine takes ( 5.2 litres / 5.5 U.S. quarts of 5W-20 )
The manufacturer recommends that you use 10W-30 weight motor oil in your 2002 BMW 530 diesel. You can use a 10 W-40 weight motor oil in high mileage engines.
WE recommend 5W30
A 2002 Subaru Legacy uses standard 10w-30 weight motor oil. During the winter, a lighter weight oil may be desirable in particularly harsh locations.
For a 2002 Kia Sportage the recommended oil to be used is a 10W-30. Most vehicles use this weight of oil. Depending on the climate it is best to stick with the recommended oil weight for your vehicle.
5w30
Any good quality oil of a weight of 5W-30.
5w30
The 2002 Ford F-150 Owner Guide shows ( 5W-20 ) engine oil
Oil type and weight is on the oil cap. I believe it's 5W30 but check for yourself.
manual recommends 5w and 10w
5W-30
I'm not sure on the weight but always check your owners manuel and always use 100% synthetic.