So you here so much about this Z-Max and I have used it before and was really impressed with the way my wife's car ran after I used it. So I wanted to know if its good to run Z-max in a engine that has just been rebuilt with new rotating assembly, New heads, New intake, New carb Etc. Of course after you use the break in oil and go back to regular oil put the Z-Max in then?????

 

Sounds like snake oil to me.

 

I'm not a Z-Max expert, but here is some reading...

FTC Sues Speedway Motorsports and Oil-Chem Subsidiary | Federal Trade Commission

"The agency alleges that enhanced performance claims for the product are unsubstantiated, that tests cited to support performance claims actually demonstrated that motor oil treated with zMax produced more than twice as much bearing corrosion than motor oil alone, and that the three different products - an engine additive, a fuel line additive and a transmission additive - were all actually tinted mineral oil."

...

"According to the FTC, the CRC L38 test is a standard auto industry tool to measure the bearing corrosion protection properties of motor oils. In February/March 1997, an independent laboratory performed two CRC L38 tests of zMax for Speedway and Oil Chem. In those tests, motor oil treated with zMax produced more than twice as much bearing corrosion as motor oil alone. The complaint also states that the defendants fabricated one "report" from the two test reports, eliminating the bearing corrosion results and all other negative test results, and then used that report and the "official laboratory results" - similarly edited to remove detrimental data results - as sales tools in the infomercial and on the zMax Web site. "


Fuel MSDS:
http://www.zmax.com/documents/msds_101_fuel.pdf

>99% Mineral Oil


Engine MSDS:
http://www.zmax.com/documents/msds_102_engine.pdf

>99% Mineral Oil

 

Thank you very much very interesting!!!

 

I've said it once and I'll say it again. Your truck needs antifreeze, engine oil, tranny fluid and or gear oil, and grease for the bearings, u joints and shafts etc.

No miracle cat **** is going to make your truck last longer, run better, fix a leaky radiator, or worn out piston rings and valve seals.

 

I once poured a bottle of slick 50 in a engine, the idle went up, the power felt better, I thought wow this stuff really works.
I am under the hood about a week later, the engine blow by got so bad that the air cleaner had a 1/4" of oil in it, I pull the dipstick it had gone through a quart of oil in 100 miles, changed the oil (which was just changed) put in a non detergent oil, it took over 500 miles to settle back down to normal, that's the 1st and last time I used any kind of oil additive.

 

Amen to that!

 

If I remember right doesn't Slick50 use teflon in it; however DuPont the makers of teflon state not to use teflon in an internal combustion engine?