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.

Techron Protection Plus Powersports And Small Engine Fuel System Treatment

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Power up your ride with confidence—fuel system care that never quits!

ECO SMART FORMULA - Reduces harmful emissions without damaging catalytic converters or oxygen sensors—drive cleaner, drive smarter.
PERFORMANCE BOOSTER - Eliminate carbon deposits, gum, and varnish to unlock smoother idles and sharper throttle response.
FUEL STABILITY MASTERY - Keep your fuel fresh and ready for up to 2 years—no more last-minute maintenance panic.
ULTIMATE ENGINE SHIELD - Protect your entire fuel system from corrosion and rust, even in the harshest conditions.
UNIVERSAL COMPATIBILITY - Works seamlessly with all gasoline engines, including two-stroke, four-stroke, carbureted, and fuel-injected models.

Techron Protection Plus Powersports & Small Engine Fuel System Treatment is a premium, alcohol- and emulsifier-free formula designed to stabilize fuel for up to 2 years while providing superior corrosion and rust protection. It cleans carbon deposits, dissolves gum and varnish buildup, and prevents new deposits, ensuring optimal engine performance and reduced emissions across all gasoline engines, including two-stroke and fuel-injected types.

Specifications

ASIN	B07K9FCLPZ
Best Sellers Rank	#37,787 in Automotive ( See Top 100 in Automotive ) #56 in Fuel Additives
Brand	Chevron
Customer Reviews	4.6 4.6 out of 5 stars (320)
Date First Available	November 7, 2018
Item Weight	10.5 ounces
Item model number	266707338
Manufacturer	Chevron
Manufacturer Part Number	266707338
Model	Techron Protection Plus Powersports & Small Engine Fuel System Treatment, 10oz
Package Dimensions	8.62 x 2.95 x 1.81 inches
Voltage	12 volts

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