Non-flex fuel ethanol blending

[Liveek]

I am interested in your opinions about the combination of E85 with 92 octane premium fuel. I have conducted some research over the last several days, noting the installation of an E85 pump around 10 miles distant, and have resolved to try it out. My mixture is about an E30, and I see a change in the overall smoothness and a reduction in exhaust odour with the high-flow catalytic converter. The Long-Term Fuel Trim (LTFT) is elevated (formerly 4-8%, now over 17%), whereas the Short-Term Fuel Trim (STFT) ranges from -1 to -4% (previously around -8%).
Am I being foolish in attributing the prolonged duration to ethanol? I am seeking a superior alternative to octane booster.

[Syncephe]

I am uncertain about how you arrived at a combination of E30.
E85 consists of 15% ethanol and 85% petrol.
Your vehicle requires 95 RON, equivalent to 91 US octane.

[Liveek]

I had 11 gallons of 92 octane petrol and supplemented the remainder with E85 fuel. If my calculations are accurate, it amounts to 10 gallons of petrol to 5 gallons of ethanol, considering the approximately one gallon of conventional petrol already present in the tank. The final blend should be adjusted from 92 octane to around 96 octane. I need more octane due to my 93 octane KO4 tune.I intend to solicit your insights about potential difficulties particular to my automobile that I may be overlooking, beyond what is available online.

[Syncephe]

You may be neglecting to recognise that E85 is classified as a flex-fuel in this region.
The ethanol concentration may fluctuate between 51% and 83%.
Indeed, at least on this side of the water.
If I had a vehicle with a 93 octane tune, I would use 98 Euro RON, equivalent to 94 octane.

[Liveek]

You are quite accurate, sir. Laughing out loud. I have contacted Propel Fuels to request some figures, and I hope their response will be prompt. However, 92 is the maximum octane rating available from a pump in this vicinity. I am fatigued by the sight of orange spark plugs and oxygen sensors resulting from the octane booster.

[Liveek]

I have recently discovered a test that involves mixing a little amount of water with E85 to assess ethanol concentration. I suppose I will adopt a scientific approach to it.

[Syncephe]

Indeed, the ethanol concentration in E85 is not a constant figure; it fluctuates with the seasons.

[Liveek]

A male individual would need to conduct periodic assessments for accuracy management. Approximately once every few months? It remains preferable to incurring additional costs for the octane booster.

[Mindumer]

It is essential to safeguard your engine with additives, in my opinion. This fuel seems to be detrimental.

[Liveek]

In my opinion, the issue lies not with the gasoline itself, but rather with the octane booster. The active component is MMT, which leaves an orange residue on surfaces. The plugs, O2 sensors, and PCV are unlikely to be beneficial for the performance. I will replace my plugs and operate the E30ish to eliminate the need for octane booster. I will examine them on my next oil change; one may get valuable insights about the vehicle's performance just by inspecting the spark plugs.

[Liveek]

I tried the E85, and it is around 83 percent ethanol. I discovered a website, morepowertuning.com, that has a calculator for mixing, and I learnt that in Washington State, the legislation defines E85 as an ethanol-gasoline blend comprising between 75% and 85% ethanol. During winter, ethanol levels are often reduced to account for lower temperatures. I would unequivocally suggest this to anybody in a similar predicament to mine. I should note that I own the S3/TTs 8V injectors; I am uncertain whether I included it in the list before. Finally, I am very pleased with the significant reduction in fuel costs. I consistently filled my tank with 10 gallons, which cost $70, but this night I filled it completely for about $44. As is often said in the United States...Yippee!

[Mindumer]

Highly intriguing Liveek. In Europe, the fuel may vary, however we are also seeing significant issues that were previously absent. A friend of mine has numerous vintage vehicles, and both petrol and diesel engines, when left idle for an extended period, get gummed up, necessitating the removal and cleaning of the fuel pump and injectors. Terrible fuel!

[Liveek]

It is rather concerning; my only issue with aged fuel (about six months) has been condensation. I had previously used sea foam. I may have been just uninformed and fortunate.

[Liveek]

One downside I have encountered is that E85 lacks the lubricating properties of petrol, potentially leading to the deterioration of fuel seals. However, I anticipate that an additional 20 percent ethanol will not be sufficient to induce issues, as I have read that it is safe to operate non-flex-fuel vehicles with up to E50. Considering the numerous advantages, including enhanced performance, reduced emissions, diminished carbon accumulation, lower costs, and an overall improved driving experie I wish I had been aware of this immediately upon applying the stage 2 song.