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royal purple makes one too, but just replace the pcv, fuel filter,air filter,plugs, and change all the fluids and coolant if it has never been done before.
For the fuel system....Find a can of BG44K. Blue and silver can about the size of a soda. They cost about $16 a can, but it is also recommended that you do not use more than 1 can a year. Just dump it in with a full tank and away you go. Really good stuff.
If the engine in question is a 1997-99 4.6, equipped with the EDIS ignition system (2 coils, each using conventional spark plug wires) then I would replace the plug wires as well.
Not really a tuneup item, but ever change the brake fluid? New fluid should be clear. If yours looks like something served at Starbucks, time to flush it out. Old fluid contains contaminants and moisture, not good, particularly if your truck has ABS.
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