Your not supposed to use red. Red is a more permanant seal. I was told by a Nitro Duck tech to use blue. I'm sure if Weezel comes in here he'll say blue too.
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Taking a break....teamless for now
i use Red for valves. it holds better and if you need to take it off you just add some heat and it comes off. you dont need alot! and you should torque it to 35 pounds per inch.