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[1stToyota]

Originally Posted by ka0sx

chevron techron gas only contains 1oz of techron for 55000 gallons of gasoline might as well not be there. however if you want to clean up your engine something fierce, I recommend using the whole 12oz in your tank, it wont hurt your engine.

there is also a cleaner that will clean out your entire engine of carbon buildup better then techron or any of the popular brand cleaners, was designed to be clean for marine use, cant remember the name at the moment. It requires some knowhow though, You put it into the engine directly through a vacuumme line at about 3k rpm then when it drains the can you instantly shot of the engine and let it sit for about 30 - 60 minutes.
after this you are good to restart the engine, there will be lots of white smoke, dont worry your engine is fine it is just the product and carbon buildup exiting out the exhaust. After the procedure change your oil withing the next 100 miles.
once again this is the most intense and best method to get rid of the carbon buildup in the engine, but I wouldnt recomend it for any car with less then 150k miles on it, unless your car has been running rich and you are now failing smog for high NOx

Seafoam...