which oil...

[RoadconeTuning]

ok.. i know in recent years ford has pushed synthetic oils... did the 99-04 GT's come w/ synthetic in them from the factory? or was it good ol' dead dinosaurs? and ive how could i tell whats in it now...

 

[Mustang5L5]

Nope, conventional.

I prefer it that way

 

[gtstangau]

They came with conventional Motorcraft oil in it. Motorcraft has gone to partialy syntheic now though.

 

[hognutz]

mine came with the 5-20 blend I think but could be wrong. I would have to read the manual again. I am not a dino fan. robs hp, bad properties at cold temp, change interval is to short. i am too lazy to want to change the oil evey 3k if I don't have to.

 

[RoadconeTuning]

dead dino is CHEAP tho... i guess ill start using Syntec Blend so i dont shrink any seals... no Purple oil for me tho

 

[RoadconeTuning]

well from reading this and looking at that little label.. its got a blend in it now... i wonder if i could move to syntec or if it would cause issues.... http://www.ilma.org/resources/ford_2004_my.pdf

 

[giddyup306]

Well ford uses a Synthetic Blend of oils (for engine oils). It is still dino oil.

During the oil refining process it starts off from crude oil. You have your light ends (butaine propane etc) up top and down low you have tar/asplalt like substance. For most conventional motor oil they mix some of the heavier ends with some of the lighter ends and make oil that way. THe "synthetic" they are talking about is the pure refined oil that they get in the middle and is unmixed to make the oil. The oil is not made of 100% of this higly refined oil due to production cost so it still contains some of the lower quality petrolium distilates.

Some of the axle lubes and MTX oils are fully synthetic however. They run $18/qt.

 

[giddyup306]

well from reading this and looking at that little label.. its got a blend in it now... i wonder if i could move to syntec or if it would cause issues.... http://www.ilma.org/resources/ford_2004_my.pdf

If you already have a leak it will be more pronounced. However, if you have none I wouldn't worrie about it.

 

[RoadconeTuning]

well when my dad trying runnin synthetic in his trans am in 96 it had NO leaks to start w/ but when it had syntheic in it poured around every piece of rubber in the motor... switched back to conventional and no problems.