In the past I've read on here (don't recall where) at least one or two folks who have had the dealer do oil changes or transmission flushes, but the owner supplied their own fluid. I thought that would be a good idea since a)I want Amsoil ATF in my tranny due to many reported success stories here, but b)I personally don't feel comfortable doing the tranny myself and I want a complete flush. I'm perfectly comfortable doing my own engine oil, so that's not an issue.
However, I have talked to two dealerships so far, and neither will do the flush with anything other than GM fluid. They both said it will void the warranty (which I know I a pile of crap) and therefore they will not do it, even if the fluid meets the specs called for by the manual - AW-1 in the case of the CTD.
I guess I understand it from the perspective that thy want to sell you their fluid, but I doubt that has much to do with it as I doubt their margins are very high on fluids along side service. I would assume they make most of their money on labor.
So my choices are a)just stick with GM fluid until after warranty, b)Do it myself, or c)Have an independent shop do the flush.
Yes, I know the whole Magnusson Moss stuff - GM can't technically deny warranty unless they can prove bad work/incorrect fluids caused the failure, but I would much rather not fight with them in the highly unlikely chance I have a failure.
This post is more of a rant than anything.
However, I have talked to two dealerships so far, and neither will do the flush with anything other than GM fluid. They both said it will void the warranty (which I know I a pile of crap) and therefore they will not do it, even if the fluid meets the specs called for by the manual - AW-1 in the case of the CTD.
I guess I understand it from the perspective that thy want to sell you their fluid, but I doubt that has much to do with it as I doubt their margins are very high on fluids along side service. I would assume they make most of their money on labor.
So my choices are a)just stick with GM fluid until after warranty, b)Do it myself, or c)Have an independent shop do the flush.
Yes, I know the whole Magnusson Moss stuff - GM can't technically deny warranty unless they can prove bad work/incorrect fluids caused the failure, but I would much rather not fight with them in the highly unlikely chance I have a failure.
This post is more of a rant than anything.