So this has been bugging me a little this week because I don't think fishoil over the lip is really going to save the situation unless the the sealent is fixed first. Plus where the gutters rust is quite accessable from inside the car.

So here are a few photos to show what I'm talking about.

First up my dodgy repair showing how accessable this is from within the car, but is not where the fishoil is going to run.


Next up, a rust repair section showing the start of some failing factory sealer. (The bit in the middle is starting to go)


Cross section view that shows that it's not a box section or anything.


Everything else on the car the rust repair section is from was pretty well rusted out but the gutters actually looked fine. You can see however that from the back that gutter is starting to go. I don't care how much fishoil you put in your car, unless you get in there and remove all the rust and re-seal it, it's going to rust out. Or as they've said you could just never drive in the rain and hope for the best, personally I'd rather fix the problem.