Syn then standard then syn

[smokersteve]

I have been running RP oil for a while. The eng had a bed plate leak. big too. so Ford fixed it and they put standard in it.

First I took it in and told them my problems and they took it in and said its fixed and threw me the keys and walked away........

So now I'm mad at ford for being so Hasty and careless. I know that they know what they are doing but the amount of care while they worked on my truck seems very low. with this dealer.

My main question is what are the effects of going from syn to standard to syn???

[ianstew]

i klnow on older engines it may cause leaks, but newer engines have better sealing technology. When I worked at quick 10 in the mid 90's, we had to be careful about switching syn and dino in higher mileagfe engines, the customer had to be informed that seal leaks may develop. but you should be ok. drain it and run what ya like.

[smokersteve]

Should I ride it out????

[cartmanea]

I'll be fine.

[mustangman02232]

Originally Posted by ianstew

i klnow on older engines it may cause leaks, but newer engines have better sealing technology. When I worked at quick 10 in the mid 90's, we had to be careful about switching syn and dino in higher mileagfe engines, the customer had to be informed that seal leaks may develop. but you should be ok. drain it and run what ya like.

i hear this all the time yet there are still no leaks on my stang with almost 100k which has ran everything from cam 2 oil to amsoil.

your truck will be fine

[Cark]

my 95 leaked like crazy with rotella synthetic even though it was recommended to me from the p/o. Just did a change yesterday and am trying straight weight rotella 30. We'll see if it helps in the summer at least and then go from there.

I've also heard of issues with older "conditioned" seals when switching to synthetic.