Why choose GERHON? | Shifting from "occasional" fuel additives to "optimizing every tank"

There are many fuel additives on the market.

Some cost around 1,000 yen. Some famous products cost around 2,000 yen.

Among them, GERHON costs 5,500 yen for 200 mL.

Looking only at the price, it is not cheap.

"Why go out of your way to choose GERHON?"

If you don't understand this point, I don't think you need to buy it.

Conversely, I want it to be used by those who understand what GERHON was created for, how it differs from general fuel additives, and who have decided it fits their own usage style after understanding all that.

In this article, I will talk about just that.

GERHON is not a product for "cleaning after it gets dirty"

When people think of fuel additives, many products come to mind that "clean injectors," "remove dirt from the combustion chamber," or "remove deposits."

That has its own meaning. Cleaning something after dirt has accumulated. It's an easy-to-understand concept.

GERHON is a little different.

What we have in mind is not "dealing with it after it gets dirty," but "maintaining the condition of the fuel you use on a daily basis from the fuel itself."

That is why GERHON is not used in bulk once every few thousand kilometers. You use a small amount every time you refuel, matched to the amount of fuel added.

20 mL for a 40 L fill-up.

You continue doing this.

We call this method "Fuel Conditioning."

There is no need to think about it in a difficult way. Changing your oil, checking tire pressure, washing your car. It is the same mindset: "Maintaining your fuel as part of your daily routine."

Looking only at the 5,500 yen, it's expensive. But 200 mL can be used about 10 times

200 mL of GERHON for gasoline is 5,500 yen.

If you look only at this number, it feels expensive.

However, GERHON is not a product meant to be used up all at once in 200 mL.

The prescribed amount is 0.5 mL per 1 L of fuel. For a 40 L fill-up, that's 20 mL.

Of course, you don't necessarily add general fuel additives every time.

That's why I won't simply say "GERHON is cheaper." That's because what is being compared is slightly different.

General cleaning-type additives are "add one bottle at the necessary timing." GERHON is "use a small amount every time."

This is where it differs.

Why use it that way?

Engines run by burning fuel. That's a matter of course.

But when we think about car maintenance—engine oil, plugs, filters, tires, batteries—we keep an eye on these parts, yet we rarely think about the fuel itself that goes into the engine every single time.

This is what GERHON is looking at.

You put in fuel. You burn it. You put in more fuel. A car runs by repeating this thousands or tens of thousands of times.

If so, isn't "conditioning the fuel itself also one part of daily maintenance?"

That is where the philosophy of GERHON begins.

GERHON is not a product that suddenly appeared in 2026

What is currently sold is the new series called GERHON Fuel Conditioning.

Gasoline, diesel, and kerosene versions. We categorize them by the fuel used.

However, GERHON itself is not a new product.

Its predecessor, "Gerhon 3+," has been sold for many years. Evaluations of the old product have accumulated on Amazon and car social media sites.

Because it is an old product, we have not transferred those ratings to the current GERHON product reviews. They are different products.

However, it is not the case that "the product called GERHON suddenly appeared yesterday."

We had customers who used it for many years, and that is what led to the current GERHON. I want to properly preserve this history.

I don't want to sell based only on feelings. That is why I am also releasing past test data

With products like these, it inevitably tends to become a story of "it got better after I put it in" or "it feels different somehow."

Of course, it is important how the person who actually used it felt. But that alone is weak.

At NEXT SCIENCE, we are also disclosing test data that was performed on the past Gerhon.

For example, for gasoline, a 10-mode test on the same vehicle in 1985. An analysis of used oil in 1993.

For diesel, continuous engine operation tests. Vehicle usage records at logistics sites. In 2026, we also performed clogging point tests for diesel based on JIS K 2288.

There is one thing I don't want you to misunderstand here.

Numbers changed in old tests. Therefore, if you use the current GERHON, you will definitely get the same results. I will not say that.

The vehicles are different. The fuel is different. Driving conditions are different. Results change.

That is precisely why I do not say "I only picked out the good numbers, and it's the same now," but rather disclose the conditions for each test.

This is so that you can use them as judgment criteria.

See test data for gasoline
See tests and site records for diesel
See the 2026 JIS test

I want to recommend GERHON to these people

I don't think it's a product that everyone needs.

For example, you want to drive your beloved car as long as possible. You want to do what you can on a daily basis, rather than after something goes wrong. You want to think about the condition from the fuel side as well, just like oil changes and tire pressure management.

I think it fits people like that.

On the other hand, for those who want "to make it dramatically faster the moment I add a bottle," GERHON is a little different.

It is not a product that guarantees a horsepower increase. Nor is it a product that repairs broken parts.

The warning light is on. There is an abnormal noise. There is a fuel leak. The engine is clearly running poorly.

In those cases, maintenance comes first. This is not a matter of adding GERHON.

Starting with 200 mL is plenty

If you are using it for the first time, you don't need to buy 1 L.

Start with 200 mL. It's 5,500 yen.

For a 40 L fill-up, it lasts about 10 times. About 550 yen per use.

Try using it in your own car. If you decide that it's worth continuing, then consider the 1 L size.

1 L is 14,960 yen. For a 40 L fill-up, it lasts about 50 times. That's about 299 yen per use.

I don't expect you to buy a large quantity from the start.

Check it in your own car. I think that's fine.

Not "buying a fuel additive," but "changing how you handle fuel"

This is what I want to convey most about GERHON.

Adding it only when trouble occurs. Cleaning it after running a few thousand km. That is one way of doing it.

GERHON is a method of "thinking of the fuel you use on a daily basis as a part of maintenance."

Therefore,

Clean after it gets dirty. Before that, condition it from the fuel.

This is the philosophy of GERHON.

GERHON by fuel type

• For Gasoline — 200 mL 5,500 JPY | for approx. 400 L, 1 L 14,960 JPY | for approx. 2,000 L
• For Diesel — 200 mL 5,500 JPY | for approx. 400 L, 1 L 14,960 JPY | for approx. 2,000 L
• For Kerosene — 200 mL 5,500 JPY | for approx. 400 L, 1 L 14,960 JPY | for approx. 2,000 L

The prescribed amount is 0.5 mL per 1 L of fuel for all types.