Ethanol Shield 4-oz 2-cycle or 4-cycle engines Fuel Additive

Name: Ethanol Shield 4-oz 2-cycle or 4-cycle engines Fuel Additive
Brand: Ethanol Shield
SKU: 5012904991
Price: 5.98 USD
Availability: InStock
Rating: 4.7 (185 reviews)

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4.7

185

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Can I use this in 4-cycle engines?How many gallons does it treat?What is the warranty period?How does it reduce emissions?Does this condition rubber and plastic?

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Prevent future engine problems with Ethanol Shield. This year-round triple antioxidant formula fuel stabilizer is used for your power equipment with 2-cycle and 4-cycle engines. This preventative maintenance formula eliminates then prevents ethanol-related problems. It removes water, prevents corrosion, provides easy engine starting all year, and keeps stored fuel fresh.

Fuel stabilizer
Prevents repairs
Cures ethanol fuel issues
Conditions rubber and plastic
Reduces emissions
Works in all 2 and 4 cycle engines

General
Application	2-cycle or 4-cycle engines	Quantity (oz.)	4

Dimensions
Weight (lbs.)	0.26

Features
Treats (Gallons)	40

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -

Warranty
Warranty	30-day

Miscellaneous
UNSPSC	15111700

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Review

4.7 out of 5

185 Reviews

96% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

What Customers Are Saying

Customers overwhelmingly praise this fuel stabilizer for reliably preventing engine issues caused by stale or ethanol-blended fuel across lawnmowers, snow blowers, pressure washers, and other small engines. Most report successful results, with engines starting smoothly after months of storage. Reviewers highlight its ability to prevent gum buildup, corrosion, and fuel separation, keeping fuel stable and protecting carburetors and O-rings. Many appreciate its simplicity and clean application, noting it stays fully dissolved without separating. A few mention dosage limitations or wish for larger container sizes. Overall, customers consider it an essential, reliable product for seasonal equipment maintenance.

Customer review summary generated by AI, including incentivized reviews.

185 Customer Reviews

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For my lawn mower it’ helps so it works better

DogsAugust 31, 2026
Verified Purchaser

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Ethanol Shield - best for keeping fuel fresh!

Would Recommend

This stuff works great! Exactly as advertised. Highly recommend!

Scott in OregonAugust 21, 2026
Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item Ethanol Shield4-oz 2-cycle or 4-cycle engines Fuel Additive
		Ratings	185
		UNSPSC	15111700
		CA Residents: Prop 65 Warning(s)
		Application	2-cycle or 4-cycle engines
Mechanic In A Bottle8-oz 2-cycle or 4-cycle engines Fuel Additive	STA-BIL10-oz 2-cycle or 4-cycle engines Fuel Additive	Sea Foam16-oz 2-cycle or 4-cycle engines Fuel Additive	STA-BIL10-oz 2-cycle or 4-cycle engines Fuel Additive	STAR TRON8-oz 2-cycle or 4-cycle engines Fuel Additive	STA-BIL32-oz 2-cycle or 4-cycle engines Fuel Additive	Toro12-oz 2-cycle or 4-cycle engines Fuel Additive	Sea Foam16-oz 2-cycle or 4-cycle engines Fuel Additive	Start Your Engines!2-oz 2-cycle or 4-cycle engines Fuel Additive
236	666	2081	357	225	476	30	198	223
15111700	15111700	15111700	15111700	15111700	15111700	15111700	15111700	15111700

2-cycle or 4-cycle engines	2-cycle or 4-cycle engines	2-cycle or 4-cycle engines	2-cycle or 4-cycle engines	2-cycle or 4-cycle engines	2-cycle or 4-cycle engines	2-cycle or 4-cycle engines	2-cycle or 4-cycle engines	2-cycle or 4-cycle engines