Looks like BMW Cleveland, Dave Walter BMW and Ganley BMW are advertising e90 oil change @ $79.95
Ganley indicates you need a coupon, BMW Cleveland and D/W makes no mention. Listed under the value service in the service tab on each of their web sites.
06 e90 330i /Alpine White/Terra Dakota Leather/Steptronic/Cold Weather Package/Premium Package/Sport Package/CA/PDC/Xenon/Logic 7/Style 162's
06 e90 325i /Jet Black/Black Leatherette/Steptronic/Cold Weather Package/Style 197's