Compression fittings on brakelines...
 

Any of us out there who work in a shop have most likely had an argument with the boss and been sent home. it happened today and here is the situation. An older(mid-late 80's) oldsmobile comes to the shop with a fluid leak, i lift the car and see one of the rear brake lines is severely rotted is leaking so i tell him and he says rather then make a whole new line we will just cut out the rot and put in a new 5-6" piece of line. Next he gives me a little baggie with compression fittings in it(has the little crush olive in it). I tell him im not putting these fittings in 'cause its illegal and he goes on this ing stint about his 30 years experiance in the trade and hes never had a problem blah blah blah. All i need to know is if im right,

My understanding is that SAE bubble or double flared fittings are the only proper fittings for brake lines and compression are not to be used. Compression fitting may be used for gas or other(i.e power steering.) can someone please clear this up for me.

i am not sure about that, but who would do that, how much more would it be for a whole new line? its like $50 or less for 25ft of brake line

i thought you were supposed to use unions, not compression fittings

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Hes oldschool man, he will fight to machine a rotor and charge 20$ when you can get new ones for 25$. Pure bullshit.

Dont use compression fittings for brake lines.
But i have seen cars that had them used as a quick fix
But the time it takes u can make a new line and do it all right for next to nothing.

I woudln't personally do it, do to the fact you can get pre made lines for like $4 at crappy tire, but technically compression fittings would be alright to use because they can handle high pressure like 3000-5000psi and different degree tempertures.