Is STA-BIL 360 worth it over regular STA-BIL?

STA-BIL 360 adds corrosion protection and PEA cleaning on top of fuel stabilization. If your equipment sits for months or you run ethanol gas, the extra protection is the reason to pay more.

How much do I add per gallon?

Use 1 oz per 5 gallons of fuel, or about 0.2 oz per gallon. The 32 oz bottle treats roughly 160 gallons.

Can I use it in a 2-cycle engine?

Yes. It is formulated for 2-cycle and 4-cycle engines and mixes with ethanol-blended or non-ethanol fuel.

How long does treated fuel stay fresh?

STA-BIL rates it for up to 12 months of fuel stability. Treat the gas before storage rather than after it has already sat.

Does it work with E85?

It is made for ethanol-blended pump gas such as E10 and E15. E85 is a different fuel and is not the intended use.

Multi-packs and fall storage sales tend to bring the per-ounce price down. The $9.98 eBay price as of November 4, 2026 is already at the low end of the 5 stores listing it.

Where can I buy the STA-BIL 360 Protection Ethanol Fuel Treatment?

7 stores we checked sell it, including Tractor Supply Company, eBay, Outdoor Power Direct, Walmart, The Home Depot.

STA-BIL 360 Protection Ethanol Fuel Treatment

Q: Where is the STA-BIL 360 Protection Ethanol Fuel Treatment cheapest?

At eBay, for $9.98, as of our latest check.

Best price now

$9.98at eBayObserved at 4:06 PM

Compared across 5 stores. Prices are checked against each store and labelled with when.

Visit eBay

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Our take on the STA-BIL 360 Protection Ethanol Fuel Treatment

STA-BIL 360 Protection is a 32 oz liquid fuel additive for ethanol-blended and non-ethanol gas. It uses PEA detergents to clean the fuel system, guards against corrosion, and keeps fuel stable for up to 12 months. One ounce treats 5 gallons, so a bottle handles about 160 gallons. At $9.98 at eBay as of November 4, 2026, it is the lowest of the 5 stores listing it new and a typical price for this size.