Originally Posted by shoebox

It depends on where there experience lies. Engines in general are the same, but there are lots of things different between them. It's ok to trust someone based on their experience with whatever you have. Heck, I do all my own work and sometimes I have to look up something I might have forgotten.

On the rare occasion that someone else does something to my car (even dealer warranty), I still look over what they did. Not pointing anyone out or purposely being derogatory, I have seen self proclaimed ASE Master Techs post things that indicated a failure of understanding.

Point is, there are great techs out there and mediocre ones. You can't take any of them at face value.