I just added opendns to my dnsmasq.conf.
here is my dnsmasq.conf for those who are curious.
I am overiding the entire config (when doing this remember if you adjust dhcp stuff, you need to adjust the overide config to match) so not using the .add function for this. Note it uses the last specified server first so order is reversed.
pid-file=/var/run/dnsmasq.pid
user=nobody
no-poll
min-port=4096
bind-dynamic
interface=br0
domain=RT-AC66U
expand-hosts
local=/RT-AC66U/
dhcp-range=lan,192.168.1.151,192.168.1.200,255.255.255.0,86400s
dhcp-lease-max=253
dhcp-authoritative
dhcp-option=252,"\n"
dhcp-option=lan,15,RT-AC66U
dhcp-option=lan,3,192.168.1.253
read-ethers
###
#server=212.159.6.9
#server=8.8.4.4
#server=8.8.8.8
server=208.67.220.220
server=208.67.222.222
#addn-hosts=/opt/etc/hosts.clean
neg-ttl=0
bogus-priv
bogus-nxdomain=64.94.110.11
no-negcache
#dnssec
cache-size=10000
no-resolv
domain-needed
strict-order
#resolv-file=/opt/etc/resolv.dnsmasq
stop-dns-rebind
rebind-localhost-ok
addn-hosts=/etc/hosts.dnsmasq
addn-hosts=/tmp/mnt/OPTWARE/hosts.clean