Just wondering what you guys think about these. I know from experiance they are very very good for your normal piston engine and I dont see why not for a rotary. The only purpose is to clean the fuel injection of as much carbon as possible which for a rotary would be good as it would clean apex seals and injectors. Only reason I am asking is because I know that people say that atf eats coolant seals and I wouldnt know if this stuff would but I doubt it. All it does is you use 1 part in the gas tank another part goes in through the intake after the afm and the last can goes in after the fuel pump w/ the pump disabled. Im sure some or most of you already know what this is I just thought I would put the short description for those that arnt aware of it. Anyways the question again is would you consider this safe it just burns and goes out the exhaust so I dont see why it would hurt but I thought I would ask first.

 

I do it to my car about every 6 months to a year. I run the stuff through a specially designed vavle with a vacuum hose on it and attach is to one of the vacuum lines on the upper intake manifold. just run it very slowly, but rig the idle up to about 2000 rpm. Since i work for Lexus, i just use the Toyota stuff.

 

Nothing that you put in the fuel tank will have any effect. The most that those additives can do is prevent minor deposits from forming.

If you want to clean the injectors, then have them professionally cleaned at an injection shop. This is very beneficial if the car has high mileage, or has been sitting.

 

Running the solvent through injectors can help sometimes. It can also damage the pintle of the injector. The solvent doesn't replace the cap or orings, it doesn't leak test, and it doesn't give you any before/after flow numbers.

Sounds like shooting in the dark.

Local injection shops can generally do the job (bench mark flow, leak test, disassemble, ultrasonic cleaning, backflow, final flow test) at $15 or so per injector. We have basic, top feed injectors so all of them can do them.

 

I do agree that anything you can get at a gas station to put into your gas tank will not do anything major. I know for a fact that this stuff works though. While at the same time if you have an injector thats not operating correctly I also agree this will not fix it. Im just talking about this as a preventative maintenance because thats what it is designed for. I just did one to my friends car which is a 99 impala. The thing wouldnt even idle because there was some sort of build up in the intake/ injection system but after we did it he said it ran better then when he got it and even decided not to trade in the car like he had planned. This stuff works but I will agree its not magic lol.