well I use mobil 1 synthetic motor oil I use mobil 1 in the transmission, rear axle and engine actually. I'm a machanic so I figure I'd rather buy good oil then replace components.
Originally posted by pinkrose I use Motorcraft synthetic when adding oil myself. When it's changed, whatever it is that they dealership or Express Oil uses.
just FYI you should never mix synthetic oil with non synethetic oil. its ok to go back and forth but you should pic a brand and type and stick with it. its ok to change weights of oil but really if you decided to but syntetic once I'd stay with it but by mixxing regular and synthetic oil you are hurting your engine. Just keep in mind if you have a old car synetheic oil will find the oil leaks real well. sometimes it might be better to go with havoline over 75,000 mile formula.