delboyt,,,,I do not know if it is full or semi synthetic or just plain old oil,,,,I was told by another forum member,,,to go to ford and buy the oil for my gal, as I was having problems sourcing the 5w/30 oil,,,,,I went to local ford dealer,,,,,and ask for 5w/30 oil for a 98 2.3 galaxy,,,,, the oil was on a display at the counter,,,,,This is what it says on the can ,,,, "Ford formula e 5w30,,,,high performance fuel economy motor oil" ,,,,,couple of numbers on the can which may help,,,,,, 1 343 795 ,,,,,,,fir no 161452 ,,,,,,,,,,,,,,,,,,,,,,to be honest once I done the filter and oil change ,,,,, the engine sounds quieter,,,,,,but that maybe just me :o