Engine cleaning, opinions Options

[92-gt]

Ok, so I am needing to clean the engine in my ST.

I need to clean it inside and out.

When I took off my throttle body, I noticed quite a lot of carbon, so I can just imagine what the intake manifold etc. look like.

Also, it has a leaky valve cover gasket(new one is on its way), and it has 190k miles on it, so it needs a good cleaning.

What do you use for cleaning the engine, such as purple power etc.?

Also, what do you recommend for cleaning the inside of the engine? I have heard mixed reviews on stuff like seafoam, b12 chemtool, etc.

What do you guys recommend?

[95st-celica]

i like to use seafoam for the inside of the engine, 1/2 can through a vac. line and the other half in the oil...do this right before and oil change as it thins your oil out...suck it up through a vac. line while your car is running...then put the rest in your oil and shut your car off for about 10 minutes...then start it up and drive it around...its gonna smoke real bad which is a good thing because its cleaning everything out really well...the best method for cleaning the outside of the motor/engine bay is to buy a can or 2 of gunk engine degreaser...spray it over everything...becarefull of the dis. i wouldnt spray it directly on any electronics...then take a pressure washer and pressure was all the **** out...that works best for me and i have had great resutls with it