Q: other than paying what can i do? can i add an additive into the engine on 2007 BMW 550i

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i just found out that my valve guides seals are leaking on my 2007 bmw 550i, will cost $11000 to fix. help!!
(2) Answers
If you find an additive that works, you rich! I dont know of any but then i have not tried any either. WTH, wort a shot!
I know this is a post from last year, but I just had mine quoted at a local reputable shop. $3,500 for new valve guide seals on a 2006 550i. Problem is the labor. I was told it takes about 30 hours plus parts. Still, Ouch!