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  • 【Saito Shokai】Premium Saito Molybdenum FX (Fuel Additive) 150ml

【Saito Shokai】Premium Saito Molybdenum FX (Fuel Additive) 150ml

4.4 out of 5 stars (115)

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  • Based on the traditional Maruyama Molybdenum "Fuel Additive", this is an ultimate high-performance model that has been developed without being constrained by cost, purely to maximize performance
  • 【Efficacy】By adding it to the fuel, it suppresses the occurrence of sludge and rust in the fuel tank and piping Coated in areas where fuel flows (inside the carburetor and manifold, injector nozzles and delivery pipes, exhaust pipes, and inside the muffler) to prevent corrosion
  • 【For those who】◻︎ Those who will "continue to drive their car for a long time" ◻︎ Those who feel that "the engine performance has declined" ◻︎ Those who are already using other brands and "are not satisfied" ◻︎ Those who "do not believe in" additives ◻︎ Those who think that "improving fuel efficiency is a misunderstanding" ◻︎ Those who think that "improving engine response is just an illusion" 他
  • 【Compatible vehicles】Gasoline vehicles, diesel vehicles, motorcycles, personal watercraft, 2-stroke engines, rotary engines, agricultural machinery engines, marine engines, industrial engines, etc
  • Content Volume: 5.1 fl oz (150 ml)
  • How to Use: Easy to apply, just mix with gasoline or diesel oil Use at a ratio of 5.1 fl oz (150 ml) per 10.9 gal (40 L) to 10.2 Approx. 1.2 fl oz (35 ml) for 2.0 fl oz
  • 【Details】Based on the previous Maruyama Molybdenum "for fuel additives", this is an ultimate high-performance model that has been developed without being constrained by cost, purely to maximize performance We have successfully achieved a 41 percent performance improvement over the previous model This product offers immediate effectiveness that you can feel right after application, along with excellent durability, truly making it a premium item By adding it to the fuel, it suppresses the occurrence of sludge and rust in the fuel tank and piping Coated in areas where fuel flows (inside the carburetor and manifold, injector nozzles and delivery pipes, exhaust pipes, muffler interior) to prevent corrosion Maintains proper clearance and ensures uniform atomization of the injector nozzle Adheres to metal surfaces of valve guides and valve seals to promote sealing effect We provide broad support not only for older cars and other driving vehicles, but also for eco-cars and hybrid vehicles Spreads throughout the cylinder wall and the entire circumference of the piston to suppress carbon buildup in the ring grooves, preventing a decrease in compression pressure By using impact action, it reduces mechanical noise Can be used for all internal combustion engines such as gasoline cars, diesel cars, rotary engines, and motorcycle engines Can be used for generators, lawn mowers, agricultural engines, marine engines, cars, motorcycles, etc., regardless of engine displacement The method of use is simple: just mix it with gasoline or light oil Use at a ratio of 5.1 fl oz (150 ml) per 10.9 gal (40 L) to 10.2 Approx. 1.2 fl oz (35 cc) per 2.8 gal
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From the brand


Product description

Fuel Additive Type A

What does the additive effects of the Saito Shokai do it?

Typically many additives are used to remove stains using "dissolved", and are often cleaned with chemical changes.

Our products feature a "physically removing dirt from the metal" and even after all, it is a revolutionary additive that is treated with a metal coating to make it difficult to get stained.

Premium gx2

What is the premium difference between the regular version?

This series was created by considering the best in the series by taking a look at the budget of the manufacturing process.

Compared to regular versions, each series has approximately 38-50 percent higher performance.

This model has been improved at the same time with fast acting and sustainability.

Premoly back

Can you store it when you need it again?

Can be stored for a long time without cutting or cutting the seal.

Heat and cold resistant construction.

But if you open the lid, please put the lid tightly.

Due to fine molybdenum particles, it may leak out.

Primoly main unit

Maruyama Molybdenum Story

A long time, there was a shop that specializes in the repair of old cars and inspection.Uncle who runs the store wanted to get back to the back with information, which is beneficial for your car every day.

We met people who move and sell additives.

They have been researched for years of minerals in oils and additives to build the "Ultimate Recipe" and have been cooperated with the manufacturer and sold as an additive.

Old car shops love the product and put videos on a video media that is meant to be enjoyed by many people.So many people really have grew their joy, and the voice was introduced to recipe developers.They have been the mobile sales itself for many years, but they were only sold in a range of ways, so we didn't think they would be happy all over Japan.

"Products that have spent most of our lives and come into a dream now have been more recognized" and the voice and expression of their own person's calmness remains unforgettable.

Sometimes it is 20XX years and old car shops were told to be called somewhere.

"I want to continue to ask."

It was short and the soul of the artisan.

Maybe the great people who put the majority of their lives won in the year.

Therefore, Saitoshokai was went to the president of Hashimoto, and continues to continue the mission and belief to the modern day.See the stories that started with a hot man.

Product information

Technical Details

Manufacturer ‎丸山モリブデン株式会社
Brand ‎プレミアム斎藤モリブデン
Model ‎FX
Package Dimensions ‎18.2 x 4.8 x 4.8 cm; 180 g
Item model number ‎sai097
Warranty ‎None
Item Weight ‎180 g

Additional Information

ASIN B0DJFTGDF4
Customer Reviews
4.4 out of 5 stars (115)

4.4 out of 5 stars
Amazon Bestseller
Date First Available October 3, 2024

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【Saito Shokai】Premium Saito Molybdenum FX (Fuel Additive) 150ml


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Customer reviews

4.4 out of 5 stars
115 global ratings
ミルスペック !!!!
5 out of 5 stars
ミルスペック !!!!
カワサキの1985年式GPZ900R A2で走行28000kmのノーマル個体に投入してみました。元々持病のカム噛りがありヘッド周りのノイズがあったのですが… 投入して数分でこの音が消えて他にもギヤ減速駆動の音も新車の時の様な音に戻ってエンジンのシャープさを体感出来たのには驚きました。 これは本当に凄い。 これ迄も既存の有名処の添加剤を使って来ましたが、こんなに体感出来るのは初めてです。 価格は割高感がありましたが、音も回転もエンジンが新車の様になったので大満足です。 ミルスペックと言っても過言では無いと思います。大満足です。
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Top reviews from Japan

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  • 5 out of 5 stars
    評判どおり
    Reviewed in Japan on June 6, 2026
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    da64wエブリワゴンに使用しました。40リッターに1本でしたが、1型のエブリは燃料タンクが35リットルなのでそのまま1本入れちゃいました。使用して100km程は何もかんじませんでしたが、その後はエンジンが軽くなった感じがします。オイルと同様にエンジン音もさらに静かになってます。燃料噴射装置の清掃と、燃料タンク及びマフラー内の保護が目的で購入しました。

    5 people found this helpful
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  • 5 out of 5 stars
    効果体感
    Reviewed in Japan on October 12, 2025
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    mazda2ディーゼルに使いました。トルク増とアクセルワーク改善、あとエンジン音が滑らかになりました。大満足です。

    3 people found this helpful
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  • 4 out of 5 stars
    プレミアム
    Reviewed in Japan on March 10, 2026
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    20年越え20万キロ越えの国産車に使用しましています。

     今まで丸山モリブデンを入れていましたが、上位モデルということで試してみました。

     エンジンも静かになり、スムーズになりましたが、エンジンオイル添加剤も同時に使用しており、素人なので、効果はあまり分かりません。

     ただ、私の車が古すぎるせいか、燃料タンクに入れると、丸山モリブデンの時も同じなのですが、必ず燃料ゲージが狂い、何回か燃料を入れているうちに戻るのですが、満タンにしても9分目くらいで止まるので、古すぎて燃料ゲージの交換部品もないのと、価格も丸山モリブデンの倍近くするので、今後は様子を見て、私なりに違いが分からなければ、丸山モリブデンに戻るか、エンジンオイル添加剤のみにしようかなと思います。

    4 people found this helpful
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  • 5 out of 5 stars
    効果あり
    Reviewed in Japan on August 14, 2026
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    エンジン音が静かに

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  • 3 out of 5 stars
    旧車にて
    Reviewed in Japan on July 26, 2026
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    実感はなかった

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  • 5 out of 5 stars
    フィーリング
    Reviewed in Japan on July 25, 2026
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    2回目からエンジンのフィーリングが良くなって体感出来た

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  • 5 out of 5 stars
    高いけど価値ある逸品
    Reviewed in Japan on November 18, 2025
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    入れて直ぐに鈍感なやつでも違いが分かる素晴らしい商品^_^

    6 people found this helpful
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  • 4 out of 5 stars
    エンジン用と併用してます
    Reviewed in Japan on October 22, 2025
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    エンジン用のレビューにも投稿しましたが、私は馬力アップなどは求めはいません。 長期間のエンジン性能維持目的のために使用してます。 こちらの商品は齊藤商会ブレンドで、従来の丸山モリブデンよりも高価ですね。 その分性能も更に向上効果あり、なのかもしれませんが、正直コレを入れましたが、特別変わったところは感じませんでした。 多分、従来からある丸山モリブデンを入れてきていたからだと思います。 それでいいんです。 最初にも書きましたが、パワーアップは求めていません(私の車はスポーツカーでもないしターボ車でもない)

    愛着のある車をこれからも調子よく長く乗っていきたい、そのための人間で言う健康食品的な考えです。

    こちらの商品はちょっとリッチな健康食品ですかね。 プラシーボかもしれませんが、よりエンジンが滑らかに回っているような感じが・・・する・・・かな。 星4つは過度の期待はしていないからコレくらいがちょうどいいのです。

    燃料側から供給する、コールドスタート時の燃焼室側の摩擦ダメージ軽減目的とバルブシール保護効果推進型燃料添加剤としての効果を期待しています。

    3 people found this helpful
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Product Summary: 【Saito Shokai】Premium Saito Molybdenum FX (Fuel Additive) 150ml

From プレミアム斎藤モリブデン

4.4 out of 5 stars, 115 ratings

Customer reviews

100+ bought in past month

Price

No featured offers available

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About this Item

  • Based on the traditional Maruyama Molybdenum "Fuel Additive", this is an ultimate high-performance model that has been developed without being constrained by cost, purely to maximize performance
  • 【Efficacy】By adding it to the fuel, it suppresses the occurrence of sludge and rust in the fuel tank and piping Coated in areas where fuel flows (inside the carburetor and manifold, injector nozzles and delivery pipes, exhaust pipes, and inside the muffler) to prevent corrosion
  • 【For those who】◻︎ Those who will "continue to drive their car for a long time" ◻︎ Those who feel that "the engine performance has declined" ◻︎ Those who are already using other brands and "are not satisfied" ◻︎ Those who "do not believe in" additives ◻︎ Those who think that "improving fuel efficiency is a misunderstanding" ◻︎ Those who think that "improving engine response is just an illusion" 他
  • 【Compatible vehicles】Gasoline vehicles, diesel vehicles, motorcycles, personal watercraft, 2-stroke engines, rotary engines, agricultural machinery engines, marine engines, industrial engines, etc
  • Content Volume: 5.1 fl oz (150 ml)
  • How to Use: Easy to apply, just mix with gasoline or diesel oil Use at a ratio of 5.1 fl oz (150 ml) per 10.9 gal (40 L) to 10.2 Approx. 1.2 fl oz (35 ml) for 2.0 fl oz
  • 【Details】Based on the previous Maruyama Molybdenum "for fuel additives", this is an ultimate high-performance model that has been developed without being constrained by cost, purely to maximize performance We have successfully achieved a 41 percent performance improvement over the previous model This product offers immediate effectiveness that you can feel right after application, along with excellent durability, truly making it a premium item By adding it to the fuel, it suppresses the occurrence of sludge and rust in the fuel tank and piping Coated in areas where fuel flows (inside the carburetor and manifold, injector nozzles and delivery pipes, exhaust pipes, muffler interior) to prevent corrosion Maintains proper clearance and ensures uniform atomization of the injector nozzle Adheres to metal surfaces of valve guides and valve seals to promote sealing effect We provide broad support not only for older cars and other driving vehicles, but also for eco-cars and hybrid vehicles Spreads throughout the cylinder wall and the entire circumference of the piston to suppress carbon buildup in the ring grooves, preventing a decrease in compression pressure By using impact action, it reduces mechanical noise Can be used for all internal combustion engines such as gasoline cars, diesel cars, rotary engines, and motorcycle engines Can be used for generators, lawn mowers, agricultural engines, marine engines, cars, motorcycles, etc., regardless of engine displacement The method of use is simple: just mix it with gasoline or light oil Use at a ratio of 5.1 fl oz (150 ml) per 10.9 gal (40 L) to 10.2 Approx. 1.2 fl oz (35 cc) per 2.8 gal

Product description

Feature 1: Based on the previous Maruyama Molybdenum "for fuel additives", this is an ultimate high-performance model that has purely maximized performance without being constrained by cost limits Feature 2: By adding it to the fuel, it reduces the occurrence of sludge and rust in the fuel tank and pipes Coated in areas where fuel flows (carburetors, inside manifolds, injector nozzles, delivery pipes, exhaust pipes, and inside mufflers) to prevent corrosion Feature 3: It spreads throughout the cylinder wall and the entire circumference of the piston to suppress carbon generation in the ring groove, preventing a decrease in compression pressure Feature 4: By the impact of the bullet, it reduces mecha noise Feature 5: Can be used on all internal combustion engines, such as gasoline cars, diesel cars, rotary engines, motorcycle engines, etc

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