STP Octane Booster
Bottled Fuel System Cleaner Restores Lost Power and Acceleration, 5.25 Oz, STP
Price as of 2026-06-03. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Budget-conscious shoppers — priced below 85% of Fuel Additives
- •Rating sits in the bottom 23% of Fuel Additives — higher-rated options exist
- •Lucas Oil 10003 Fuel Treatment — higher rated at 4.8/5 ($10)
📊 Based on data analysis of 53 products in this category.
Mubboo Score: A-
How It Compares
This Product STP Octane Booster | Most Popular Lucas Oil 10003 Fuel Treatment | Best Rated STA-BIL Storage Fuel Stabilizer | Best Value Royal Purple 18000 Fuel Injector Cleaner | |
|---|---|---|---|---|
| Price | $7.99 | $9.89 | $10.61 | $6.48 |
| Rating | 4.6/5 | 4.8/5 | 4.8/5 | 4.6/5 |
| Reviews | 1,386 | 24,615 | 14,291 | 3,314 |
| Mubboo Score | A- | A+ | A+ | A |
Quick Specs
- Model
- 78574
- Voltage
- 12 Volts
- Exterior
- [[Not Applicable]]
- Position
- Outside
- Item Weight
- 5.3 ounces
- Manufacturer
- STP
- Customer Reviews
- 4.6 out of 5 stars
- Best Sellers Rank
- #5,528 in Automotive (See Top 100 in Automotive)#3 in Octane Boosters
What People Say
Synthesized from 40 reviews · 100% verified purchases.
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
Related Video Reviews
- 📹 The TRUTH About DIESEL ADDITIVES…Scam or Science? — Freedom Worx
- 📹 STOP Buying Diesel Fuel Additives - Here's Why! — The Motor Oil Geek
- 📹 Redline SI-1 vs Techron — Which One Is Actually Worth Your Money? | Fuel System Cleaner Finals — Chris from Beachside Auto Parts
Key Features
- ✦Boosts octane
- ✦Reduces knocking and pinging
- ✦Helps restore performance
Source: product listing on Amazon.
About STP
- 9 products in our database
- Average rating: 4.7/5 across all products
- Price range: $6.64 – $45.95
- Categories: Fuel Additives, Motor Oil, Probiotic Supplements
Other Fuel Additives
Bottom Line
STP Octane Booster earns Mubboo Score A-. Priced at $8 — a budget-friendly option, below the category average of $20. Rated 4.6/5 from 1,386+ reviews. Strong buy if: budget-conscious shoppers. Skip if: rating sits in the bottom 23% of fuel additives — Lucas Oil 10003 Fuel Treatment (Score A+, $10) may fit better.
Frequently Asked Questions
Is the STP Octane Booster worth buying in 2026?
It earns a Mubboo Score of A-, with a 4.6/5 rating from 1,386 reviews — better than 23% of Fuel Additives we track.
How much does the STP Octane Booster cost?
It is currently $7.99 — budget-tier pricing for Fuel Additives.
How does the Octane Booster compare to other Fuel Additives?
The category's most-reviewed alternative is the Lucas Oil 10003 Fuel Treatment (4.8/5, 24,615 reviews, $9.89). The Octane Booster carries a Mubboo Score of A- vs A+.
Sources & References
Mubboo may earn a commission from purchases made through links on this page. Prices and availability are accurate as of the last sync (2026-06-03) and may change.