STA-BIL Small Engine Pro Multi-System Additive
Protects Against Ethanol - Cleans Carb And Injectors - Improves Engine Efficiency - Lubricates Valves And…
Price as of 2026-08-11. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$7–$11← You are here
- Mid-range:$11–$24
- Premium:$24+
Is This Right For You?
- •Budget-conscious shoppers — priced below 93% of Fuel Additives
- •Rating sits in the bottom 20% of Fuel Additives — higher-rated options exist
- •Lucas Oil 10003 Fuel Treatment — higher rated at 4.8/5 ($12)
📊 Based on data analysis of 15 products in this category.
Mubboo Score: A-
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Fuel Additives
Computed from live Amazon rating, review count, and price across 15 Fuel Additives available to US consumers · last refreshed 2026-08-11.
How It Compares
This Product STA-BIL Small Engine Pro Multi-System Additive | Most Popular Lucas Oil 10003 Fuel Treatment | Best Rated STA-BIL Storage Fuel Stabilizer | Best Value STA-BIL 360 Protection Ethanol Treatment & Fuel Stabilizer | |
|---|---|---|---|---|
| Price | $6.84 | $11.59 | $12.48 | $6.99 |
| Rating | 4.6/5 | 4.8/5 | 4.8/5 | 4.8/5 |
| Reviews | 862 | 24,615 | 14,291 | 6,645 |
| Mubboo Score | A- | A+ | A | A+ |
Quick Specs
- Size
- 16 Fl Oz (Pack of 1)
- Scent
- scent
- Item Form
- Liquid
- Unit Count
- 16.0 Fluid Ounces
- Item Volume
- 16 Fluid Ounces
- Item Weight
- 1.07 Pounds
- Part Number
- 22305
- Manufacturer
- Gold Eagle Co.
What buyers say about Fuel Additives
Themes from buyer reviews across this category — not review data for this specific model.
For maximum cleaning power, choose a product with high PEA content like Red Line SI-1 or Chevron Techron, but expect to use multiple treatments for severe deposits. For long-term storage, use a dedicated stabilizer such as STA-BIL or Star Tron to prevent gum and starting problems.
- Improved engine performance and smoothness
- Effective fuel system cleaning and deposit removal
- Ease of use
- Fuel economy improvement
- Long-term fuel stabilization for storage
- High price and recent price increases
- Packaging issues during shipping
Expert Picks in Fuel Additives
- Lucas LUC10013 Fuel Treatment — Best Overall
- Red Line Complete Fuel System Cleaner — Best Value
- Star Tron Enzyme Fuel Treatment Concentrate — Honorable Mention
- Opti-Lube XPD Formula Diesel Fuel Additive — Best for Diesel Engines
- Red Line SI-1 Complete Fuel System Cleaner — Strongest PEA Cleaner
- BG Platinum 44K Fuel System Cleaner — Professional Grade
- CRC 1-Tank Power Renew — High PEA Concentration
- Chevron Techron Concentrate Plus — Best for Regular Maintenance
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
- 📹 We Tested the Most Popular Fuel Additives — One Clear Winner! — Unknown (automotive testing channel)
- 📹 19X Difference In Deposits! [Engine Test Results] — The Motor Oil Geek
Key Features
- ✦Clean and improve your fuel system with Small Engine Pro, a gasoline/oil additive that helps restore lost engine power and performance, by cleaning out gum and varnish
- ✦Keeps internal engine components lubricated and free, providing longevity to internal engine parts
- ✦With optimal lubrication and cleaning, this formula effectively quiets noisy engines
- ✦Protects Against Ethanol - Corrosion Inhibitors provide the ultimate protection against the harmful effects of Ethanol
- ✦Safe for use in all gas powered small engine equipment including lawn mowers, trimmers, chainsaws, pressure washers, edgers, snow blowers, generators and more!
Source: product listing on Amazon.
About STA-BIL
- 8 products in our database
- Average rating: 4.8/5 across all products
- Price range: $6.84 – $26.99
- Categories: Fuel Additives
If not the Small Engine Pro Multi-System Additive, consider these
Featured in Our Reviews
Bottom Line
STA-BIL Small Engine Pro Multi-System Additive earns Mubboo Score A-. Priced at $7 — a budget-friendly option, below the category average of $18. Rated 4.6/5 from 862+ reviews. Strong buy if: budget-conscious shoppers. Skip if: rating sits in the bottom 20% of fuel additives — Lucas Oil 10003 Fuel Treatment (Score A+, $12) may fit better.
Frequently Asked Questions
Is the STA-BIL Small Engine Pro Multi-System Additive worth buying in 2026?
It earns a Mubboo Score of A-, with a 4.6/5 rating from 862 reviews — better than 20% of Fuel Additives we track.
How much does the STA-BIL Small Engine Pro Multi-System Additive cost?
It is currently $6.84 — budget-tier pricing for Fuel Additives.
How does the Small Engine Pro Multi-System Additive compare to other Fuel Additives?
The category's most-reviewed alternative is the Lucas Oil 10003 Fuel Treatment (4.8/5, 24,615 reviews, $11.59). The Small Engine Pro Multi-System Additive carries a Mubboo Score of A- vs A+.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-08-11) and may change.