I would go with liquid teflon for now, for automotive applicaitons, i prefer not to use teflon tape as it compresses, whereas you want the liquid to fill the gap where ever it may be as long as it is applied to the threads, (side note it does not take that long to dry, just dont run the car for a half hour or so)
http://www.chiefaircraft.com/airsec/...veSealant.html it will last you about 30 years, or so of shelf life