Oil Additive

[a1awind]

For an oil additive....marvel mystery oil or lucas?

[onlyinajeep726]

Both are very good.  I've used both.  You can use MM in the gas too, similar to Seafoam.

[Eagle]

Depends on what you want to do.

 

Marvel Mystery Oil is primarily a cleaning agent. It'll help keep the inside of your engine cleaner, but it doesn't make the oil any thicker, stickier, or "oilier."

 

Lucas is a viscosity index improver. It does the same thing as STP -- it makes the oil thicker, stickier, and "oilier."

 

Personally, if I want a thicker oil I buy a heavier weight of oil. I saw what running STP did to a friend's expensive racing engine once. It wasn't pretty.

[SW86]

i throw a can of restore all in at every oil change (delo 400). it took out some of the ticking almost immediately. It did wonders in my old 97 maxima.

[cruiser54]

i throw a can of restore all in at every oil change (delo 400). it took out some of the ticking almost immediately. It did wonders in my old 97 maxima.

That stuff works pretty good, doesn't it? Got rid of lifter tick in 2 different 4.0s for me.