We do them when we think there is a problem.Originally Posted by chad@competitionclutch
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I guess if you are confident with the work done on the car and all the connections then you dont have to do it all the time. If you have beads on all your pipes, good tbolt clamps, if all your vacuum lines have clamps on them then you should be good to go for a good period of time. I think its good to visually inspect it at every oil change.