question about this oil stuff. if you got to synthtic and then back to conventional the engine migth develope leaks at seals or whatever. if you then again switch to synthetic will the seals do good again or still leak.
reason im asking is in our ford i switched it to synthetic, but then i took it to firestone cauze i didnt have time to change it myself and told them to put in synthetic, and thats what the invoice said they did, but after that change i've been noticing some oil on the underside. tomorow im going under it to see whats up.
thanks for replies.
