Disclaimer: I am in no way sponsored by Redline and my test is independent.
I have seen previous youtube videos where the fuel cleaner is poured and run and immediately evaluated.
Stock setup - Honda Stream RN6 - Compact MPV
Similar engine to some Honda Civic: R18A - 1.8 L Auto
Motor Oil: Shell Helix 5w-40
Fuel: Caltex 92
Tire: Goodyear Triple Max, Pressure between 32 to 36 PSI
However I believe that the PEA ingredient works after cycles of repeatedly soaking and running. Hence immediate evaluation will not reveal much on the PEA effectiveness on carbon removal.
My dosing is 220 ml per 48 L of Caltex 92.
The full bottle is 443 ml. That means I have ran the whole bottle on two tanks instead of the recommended 1 bottle to 1 tank of fuel.
You can read my previous posts and updates on the main page here
Here are the photos of before and after.
First 220ml dose into tank at Odometer: 111,753 km
Second 220ml dose into tank at Odometer: 112,480 km
First maintenance dose 50ml into tank at Odometer: 113,166. <<< Photos taken here on 23 Jun 2015
The BEFORE photos are taken on May 15, 2015 and the AFTER photos are taken today using the same boroscope.
I must quantify that there are soft carbon bits still as i peered through the boroscope. However on areas where the fuel sprayed, it has become very clean.
|There was no comparative photo for cylinder #1 previously as it was at TDC and i did not crank the piston down for a photo then.|
The results are impressive and the photos speak for themselves.
Added on 27 Jun
Lastly photo the spark plug tips. No fouling.
Added on 1 Jul
The Air-Fuel sensor which is placed nearest to the exhaust manifold.
|White deposits on half of the surface that is directly exposed to the manifold port|
White deposits usually indicate the use of additive or burning of motor oil.
As posted in my update, i am into my second bottle of maintenance dose of 50ml per tank of fuel and it would take another 8 tankfuls before I change the engine oil. It usually takes about 9-10 days for me to consume a tank of fuel.
So the next review would be about 80 days later.
(I use the regular 5w-40 Shell Helix Ultra Synthetic oil. Nothing fancy.)
Q1. Did my mileage improve?
-No, not really. I was almost as efficient as i can be before i added Redline Fuel System Cleaner SI-1 as you can see on my original post. However, the cleaning surprised me quite a bit that it is effective.
Q2. Was there more power or octane boost?
-No, the drive and feedback feels the same.
Q3. Why octane 92?
I have been using Caltex 92 some sixteen tanks ago.
That was Jan 26, 2015.
I was previously using Caltex 95 and briefly on other brands of fuel, mostly octane 95. There was no engine knocking nor loss of power using octane 92.
There was a lot of mis-information and myths to using higher octane fuel for power and cleaning prowess of the detergent in the fuel. However this proves that external additive is required to clean the combustion space further even though the engine will run as it is designed to perform. This extra effort is put in by a loving car owner.
On octane 92, i believe that the engine has performed on its maximised efficiency to give me about 670~700 km per tank of fuel, compared to the early days where i got about 600 km per tank.
Here is my full fuel log, excluding the previous few tanks when my engine had a head gasket burnt and was sent to the workshop for overhaul.
|Engine log since Jun 16, 2014 when i gotten this fifth year used vehicle.|