Check out this ZMax lawsuit PDF. I does not appear good on the surface...
If I were you, I would print this lawsuit out and show it to the service manager. I would then suggest that they drain the oil and put in the oil of your choice gratis. Sumsobitches!
http://www.ftc.gov/os/caselist/00232...omp0023256.pdf
__________________
Bob
04 GT3
86 Carrera
97 318ti
"Guys, I'm coming in, I have too much grip."
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