In this video, it is shown that oven cleaner containing sodium hydroxide was sprayed directly into the air intake manifold after removing the rubber hose.
This was done, with the engine running at 2000 RPM , spraying in short bursts.
The idea was to remove some of the deposits of carbon and increase the air intake to make the vehicle more economical.
I have seen other videos showing oven cleaner being sprayed into the turbocharger after removing the gate valve, letting it stand for a few hours while the foam works on the carbon deposits.
This seemed like a lot of work, so decided to test Mr Muscle Oven cleaner's effects on the inlet manifold and engine exhaust system.
Following numerous applications sprayed in short bursts, the car was taken for a test drive, and I noticed improvements in performance and fuel efficiency.
I had previously sprayed home made detergent into the running engine, through the same inlet. Although there was some improvements, the oven cleaner appears to be better at removing the carbon and fuel deposits.
Step 1: Mr Muscle Oven Cleaner Contains (Sodium Hydroxide)
Warning: Be careful using this product, read the label and avoid contact with skin and eyes, so wear rubber gloves and an eye shield. If irritation occurs wash out with lots of water.
The oven cleaner is sprayed directly into the air intake after removing the spring clip and intake hose.
Step 2: The "acid Test", or in This Case the Alkaline Test
Aluminium wire and an aluminium foil T light candle container were sprayed with the oven cleaner and left for over an hour to see how aggressive the cleaner was.
Some discolouration occurred, which easily wiped off. Neither the wire or the foil was seen to be significantly affected other than the outer oxidisation that was wiped clean.
The reason I did this was to test what it's effects would be on the aluminium inlet manifold and EGR valve, which are prone to become heavily clogged with carbon, oil and fuel deposits, almost to the point of stifling the air intake completely. (Bad design)
I doubt that the oven cleaner manages to remove all of the deposits and reach the manifold, but given that it had little effect on the wire and foil over an hour, it will not have any affect on a cast aluminium manifold, given that it's passage through it is rapid.
I also tested spraying the foam into the manifold and letting it stand for an hour, to see if it would help remove the build up, prior to trying it in the running engine.
I will next try Wins Turbo Cleaner, to see how it compares with the oven cleaner.
Thanks for watching the video