Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment
6 Ounce
Price as of 2026-06-03. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$3–$10← You are here
- Mid-range:$10–$26
- Premium:$26+
Is This Right For You?
- •Budget-conscious shoppers — priced below 77% of Fuel Additives
- •Those who want a top-rated option — in the top 1% of Fuel Additives by rating
- •Royal Purple loyalists — the brand spans 21 products in our database
- •You prefer well-established products — only 79 reviews, so the rating may still shift
📊 Based on data analysis of 53 products in this category.
Mubboo Score: B
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 53 Fuel Additives available to US consumers · last refreshed 2026-06-03.
How It Compares
This Product Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment | Most Popular Lucas Oil 10003 Fuel Treatment | Best Rated STA-BIL Storage Fuel Stabilizer | Best Value Royal Purple 18000 Fuel Injector Cleaner | |
|---|---|---|---|---|
| Price | $8.88 | $9.89 | $10.61 | $6.48 |
| Rating | 4.8/5 | 4.8/5 | 4.8/5 | 4.6/5 |
| Reviews | 79 | 24,615 | 14,291 | 3,314 |
| Mubboo Score | B | A+ | A+ | A |
Quick Specs
- Size
- 6 Fl Oz (Pack of 1)
- Unit Count
- 6.0 Fluid Ounces
- Part Number
- 18001
- Manufacturer
- Royal Purple
- Model Number
- 18001
- Item Type Name
- High Mileage Fuel System Treatment
- Number of Items
- 1
- Customer Reviews
- 4.7 out of 5 stars
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
Expert Picks in Fuel Additives
- Chevron Techron Concentrate Plus Complete Fuel System Cleaner — Best fuel injector cleaner overall
- Lucas Upper Cylinder Lubricant and Injector Cleaner — Best fuel injector cleaner for diesel engines
- Gumout Regane High Mileage Fuel System Cleaner — Best fuel injector cleaner for high-mileage cars, engines and vehicles
- Royal Purple Max Atomizer Fuel Injector Cleaner — Best fuel injector cleaner for direct-injection cars and engines
Category recommendations from independent expert publications. Source links in References.
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
- ✦RESTORES FUEL ECONOMY – Increased fuel economy by an average of 6% vs. dirty injectors
- ✦LOWERS EMISSIONS – Cleaned injectors improve combustion, reducing CO, NOx, and unburned hydrocarbons
- ✦INCREASED RELIABILITY – Provides wear protection in the combustion chamber & reduces damage caused by high-ethanol fuels
- ✦MAXIMIZED DEPOSIT REMOVAL – Required injection time reduced over 70% vs. dirty injectors (normalized to new injectors)
- ✦EPA and CARB COMPLIANT – safe and legal for use in all 50 states
Source: product listing on Amazon.
About Royal Purple
- 21 products in our database
- Average rating: 4.8/5 across all products
- Price range: $6.48 – $123.99
- Categories: Fuel Additives, Motor Oil, transmission-fluids
If not the 18001 Max-Restore High Mileage Fuel System Treatment, consider these
Bottom Line
Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment earns Mubboo Score B. Priced at $9 — a budget-friendly option, below the category average of $20. Rated 4.8/5 from 79+ reviews. Strong buy if: budget-conscious shoppers, those who want a top-rated option. Skip if: you prefer well-established products — Lucas Oil 10003 Fuel Treatment (Score A+, $10) may fit better.
Frequently Asked Questions
Is the Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment worth buying in 2026?
It earns a Mubboo Score of B, with a 4.8/5 rating from 79 reviews — better than 100% of Fuel Additives we track.
How much does the Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment cost?
It is currently $8.88 — budget-tier pricing for Fuel Additives.
How does the 18001 Max-Restore High Mileage Fuel System Treatment 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 18001 Max-Restore High Mileage Fuel System Treatment carries a Mubboo Score of B 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 (2026-06-03) and may change.