are those "engine treatment" additives actually worth it? my dad has some he bought quite some time back and he says he saw ads (of course they will support it) saying they were good for the engine.. they basically replace a quart of oil you would normally put in and are supposed to extend engine life and lubricate better... any idea if these things really work.. or are they just a gimmick? thank you for taking the time to read.

 

Recommend you do not use oil additives of any kind. Petroleum/lubricant engineers formulate their products to meet certain industry-standard performance requirements. When you use an oil additive, you are introducing chemical compounds that will change the composition of the original product...so you basically don't know what you're going to end up with. Also, it is widely known that several manufacturers of oil additives have been successfully sued for making false claims. i think if you check your owner's manual , it will specifically recommend against using any oil additive. Your best bet is to use a quality lubricant (a synthetic for optimal protection). ed

 

No. Slick 50 is teflon and Duralube or Prolong is chlorinated parrafin. Teflon will not adhere to metal unless it is heated to over 1,000 degrees. Your engine internals would cook long before that. PTFE treatment will only clog your oil filter. Chlorine will pit the metal eventually.

 

Definitely stay away from those products. The only additive I might consider is Auto Rx. There are several members here trying it out and it comes highly recommended on another site. I'm trying it right now in an older car that I don't eally care about to see how it performs.

 

I don't have the links but here is a list that the FTC sued for false advertising and won. No Engine treatment works period!


Valvoline engine treatment
Slick 50
Duralube Super Engine Treatment
Duralube Advanced Engine Treatment
MotorUp
Prolong Super Lubricants