upper cylinder lubricant, wtf? Options

[Hanyo]

So i was looking through some fuel injection cleaning service. The one that hooks up your car to a seperate fuel system to clean your injecters and de-carbonize your engine. And i came across someone mentioning upper cylinder lubricant fuel additives.

Can anyone point me in the right direction to what they are talking about in a non bias answer? I want to know why people would want to add this stuff into there system and why not? If you have something hard facts please link it.

thanks guys.

[Bitter]

don't worry about it, its alot of mumbo marketing jive. the oil film and additives in gasoline lube your cylinder rings which is what they're talking about as the upper cylinder.


those machines work pretty well btw, we use one at the shop on a regular basis to clear up dirty injectors on cars all the time. usually to try to resolve a P0171 or P0174 (bank1 or bank2 too lean), where everything else is working perfectly but its still running lean and running up the fuel trims. 9/10 times that fixes it, and it begins to run as it should. cheap fuels tend to cause this more-so than the 'top tier' fuels. when i say cheap i mean grocery store gas and walmart gas. i did the injection cleaning on my 7afe and honestly i noticed no difference really, maybe it ran just slightly smoother but i don't know. unless you're having a problem it's really not needed in my opinion. as for removing carbon, i'm sure some cleaner solutions do. we use a motorvac machine with its cleaner. its some nasty stuff but works well, i'm told its similar in composition to the cleaning solution for naval gun bores or some marketing fluff. take it all with a grain of salt, i've used seafoam to de-carbon a few engines as well with similar results as far as the elimination of pinging on acceleration and up inclines.