Different oil companies at different times and different regions of the country.
i think it is amalie oil
Motorcraft is the OEM Ford motor oil brand.
5.99
I prefer Roush HIGH ZINC PERFORMANCE MOTOR OIL.
They sell a crappy brand called - "certified motor oil".
Depends on what part of the country you are in. It also changes from time to time as they use the bid process to award contracts for oil. So who makes it today may not be true next month. It may very well be a great oil, but I use only major brand oils and stay away from any store brand.
No, but find out the requirements for the motor. Most normal motor oils don't meet manufactures requirements for wear protection.
Any major brand synthetic oil.
Depends on where you purchase the oil. Most of their oil is manufactured by Chevron. But in some areas it may be made by some other oil company.
As long as it is the same grade of motor oil the brand name should not matter.
Some Walmart centers install tires for cars. You can get motor oil, anti-freeze and transmission fluid at Walmart.
Use any good grade of motor oil that meets the manufactures specifications. Use 5W-30W oil.