I know most oils (especially full synthetics) have additive packages in them. That being said, does anyone occasionally put a little something exta in their oil every once in a while. If so, what do you use and how has it helped?

 

I run 1 qt of lucas oil stabiliser with every oil change...... Before i did it, you could hear the cam phasers clacking away..... Now it's super quiet.

 

What oil are you using?

 

I used Marvel Mystery oil for a few changes and it eliminated by clanking on startup.

 

For my 2006 F150 4x4 Super Crew, 5.4, I use 6 quarts Mobil 1 5W-20 synthetic and 1 quart Lucas Oil Stabilyzer. Nice and quiet. truck has 231,000 and going strong.

 

I am toying with the idea of cycling between regular RP and HP RP. Would have the same effect, I think.

 

I'm using Amsoil 5w-30 signature series oil. No extra additives needed when running a superior engine oil.

 

That is my point. Cycling between RP and Synerlic RP instead of an additive.

 

I wouldn't even bother cycling between oils, use one good oil and stick with it, IMO.

 

X2... Amsoil is really good, I run it in everything that I own!