ORIGINAL: yoster
ORIGINAL: nitro666
dont use os plus unles its a os motor get the propper plug
Ignore what this guy said... he obviously doesn't know nitro. You want to use an OS #8 with 20%. OS plugs are far better than the duratrax sport they give you. Either will do... but OS makes a quality plug.
i am running 20% fuel and my local shop gave me the #8 also.