cardinal Posted September 17, 2016 Report Share Posted September 17, 2016 In terms of the symptoms of the carbon build-up, typically the noise from the engine contains all the usual tick over noises and fans/pulleys, but is very 'bass-heavy' with a lot of low level rumble, shaking, etc. With the process I'm using this typically disappears within the first 10 minutes and the car idles better. The revs then climb quicker and any flat spots (if carbon related) are eliminated.The rumble is down to the engine struggling, with added friction, reduced 'breathing'. Remove the carbon and the bass notes disappear, the engine works better and as a result you can recover MPG (notice I didn't say gain). My car does this, have you ever tried this new thing called hydrogen engine cleaner?? Components such as Diesel Particulate Filter (DPF), Exhaust Gas Recirculation Valve (EGR), Turbo and Injectors can all dramatically benefit from the removal of carbon using Green Engine Machine.....they say danthedriver 1 Quote Link to comment Share on other sites More sharing options...
basescu Posted September 21, 2016 Report Share Posted September 21, 2016 Shell Vpower and never have problems, on the long term i find it very efficient LUED 1 Quote Link to comment Share on other sites More sharing options...
hdriver Posted October 25, 2016 Report Share Posted October 25, 2016 On 17/09/2016 at 7:37 AM, cardinal said: In terms of the symptoms of the carbon build-up, typically the noise from the engine contains all the usual tick over noises and fans/pulleys, but is very 'bass-heavy' with a lot of low level rumble, shaking, etc. With the process I'm using this typically disappears within the first 10 minutes and the car idles better. The revs then climb quicker and any flat spots (if carbon related) are eliminated.The rumble is down to the engine struggling, with added friction, reduced 'breathing'. Remove the carbon and the bass notes disappear, the engine works better and as a result you can recover MPG (notice I didn't say gain). My car does this, have you ever tried this new thing called hydrogen engine cleaner?? Components such as Diesel Particulate Filter (DPF), Exhaust Gas Recirculation Valve (EGR), Turbo and Injectors can all dramatically benefit from the removal of carbon using Green Engine Machine.....they say Have you tried yet? if so , how is it? Quote Link to comment Share on other sites More sharing options...
danthedriver Posted November 1, 2016 Report Share Posted November 1, 2016 I searched online, apparently is does some good but there is no real research I still think is better to change the engine oil (good one, full synthetic like Mobil1 ) once at 6000 miles Quote Link to comment Share on other sites More sharing options...