lawnmowers is this good to keep the system clean while using it and not just when storing it?

I've been using it in all the fuels for my mower, 2-stroke mixes, and my motorcycle and all three have been surprisingly clean, especially the two stroke motors.

Is this to be used prior to an oil change?

If it's like 500 miles before an oil change, that's OK. You can also use after an oil change, but TECHRON recommends NOT to use more than twice during a new oil change. I use during the last 500 miles (whole bottle) on near empty tank & run the car until the reserve light comes on. Been using this for at least 20 years. If the car runs rough, you can pour in a bottle twice, like every 2,500 miles, or repeat the process, whichever you want to do. For best results, try & do as much highway driving after pouring in & make sure to drive at least 5-10 miles to get it up in the lines & all before turning the engine off. Since you're going to be at the gas station & pouring in before refilling the tank, this is a good time. Good Luck!

What is the ratio of additive to fuel? Can it be used in nonethanol fuel?

1 oz per 10 gallons. It can be used in nonethanol fuel.

Can you reseal the 20 oz bottle and use the rest later?

You can't physically reseal the paper tab, but yes you can screw the cap back on & it will keep it sealed for later use. However, this will not guarantee the same 5 year shelf life.

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TECHRON 266711163 高マイレージ燃料システムクリーナー

Product ID: 733412021

⛽Restores lost power & performance

📈Maximizes fuel efficiency & engine health

🛡️Protects against multi-metal corrosion

¥10499

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Description

⛽ Keep your engine roaring and your wallet smiling!

FUEL ECONOMY CHAMPION - Enhances engine efficiency, reducing fuel consumption mile after mile.
EASY MAINTENANCE RITUAL - One 12oz bottle treats up to 21 gallons; use every 1,000 miles for peak engine health.
POWER BOOST GUARANTEED - Eliminates gum, varnish & deposits to revive engine performance.
UNIVERSAL COMPATIBILITY - Perfect for high-mileage vehicles, classic cars, and ethanol blends like E10/E85.
CORROSION DEFENSE SYSTEM - Multi-metal corrosion inhibitors safeguard iron, steel, copper & silver parts.

Techron High Mileage Fuel System Cleaner is expertly formulated to clean and protect fuel systems in vehicles with 75,000+ miles, including classic cars and modern engines. Compatible with gasoline and ethanol blends, it removes deposits, restores lost power, improves fuel economy, and prevents corrosion across multiple metal components, ensuring your engine runs smoothly and efficiently mile after mile.

Specifications

ASIN	B086FJV5J8
Amazon 売れ筋ランキング	車＆バイク - 444,651位 ( 車＆バイクの売れ筋ランキングを見る ) 燃料・オイル用ツール - 2,516位
Amazon.co.jp での取り扱い開始日	2020/11/28
おすすめ度	4.7 5つ星のうち4.7 (1,376) var
ブランド	Chevron
メーカー	Chevron
モデル名	Techron High Mileage Fuel System Cleaner
商品の寸法奥行き × 幅 × 高さ	8 x 6.8 x 22.6 cm
商品の重量	340 g
商品モデル番号	266711163
色	ハイマイレージ燃料システムクリーナー
製品サイズ	8.02 x 6.77 x 22.6 cm; 340 g

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥10499

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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