If you're referring to NPT threads, and only NPT threads, Permatex thread sealant will work fine or a similar pipe thread sealant...........in a perfect world NPT threads can be assembled with lube only and seal, however this is far from a perfect world............
Fittings such as SAE, JIC, ORB, nut & ferrule do not rely on their threads to perform the seal..........the seal in those types of fitting are accomplished by other means sush as o-rings, tapered faces, compression, etc...........
I mention this since I've seen many people install sealant on a nut & ferrule compression style fitting which are commonly found on older fuel systems...............
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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