Liqui Moly Pro-Line Gasoline System Cleaner
| 500 ml | Petroladititive | SKU: 2030
Price as of 2026-06-03. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Buyers who prioritize quality over price in Fuel Additives
- •Those who want a top-rated option — in the top 1% of Fuel Additives by rating
- •Liqui Moly loyalists — the brand spans 42 products in our database
- •You're on a tight budget — $8 above the category average of $20
- •Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 — 59% cheaper at $12 (Score A-)
📊 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 · last refreshed 2026-06-03.
How It Compares
This Product Liqui Moly Pro-Line Gasoline System Cleaner | Most Popular Chevron 67740-CASE Techron Concentrate Plus Fuel System | Best Rated STAR BRITE Star Tron Enzyme Fuel Treatment Concentrate | Best Value Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 | |
|---|---|---|---|---|
| Price | $28.58 | $39.98 | $19.19 | $11.64 |
| Rating | 4.8/5 | 4.6/5 | 4.8/5 | 4.7/5 |
| Reviews | 2,670 | 16,871 | 9,871 | 3,083 |
| Mubboo Score | B | B+ | A- | A- |
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
- ✦Package Dimension : 2.24 " L x 2.24 " W x 7.96 " H
- ✦Country of Origin: GERMANY
- ✦Model Number : 2030
- ✦Item Package Weight : 0.9 pounds
Source: product listing on Amazon.
About Liqui Moly
- 42 products in our database
- Average rating: 4.8/5 across all products
- Price range: $8 – $192.32
- Categories: Fuel Additives, Motor Oil
Other Fuel Additives
Bottom Line
Liqui Moly Pro-Line Gasoline System Cleaner earns Mubboo Score B. Priced at $29 — a premium option, above the category average of $20. Rated 4.8/5 from 2,670+ reviews. Strong buy if: buyers who prioritize quality over price in fuel additives, those who want a top-rated option. Skip if: you're on a tight budget — Chevron 67740-CASE Techron Concentrate Plus Fuel System (Score B+, $40) may fit better.
Frequently Asked Questions
Is the Liqui Moly Pro-Line Gasoline System Cleaner worth buying in 2026?
It earns a Mubboo Score of B, with a 4.8/5 rating from 2,670 reviews — better than 100% of Fuel Additives we track.
How much does the Liqui Moly Pro-Line Gasoline System Cleaner cost?
It is currently $28.58 — premium-tier pricing for Fuel Additives.
How does the Pro-Line Gasoline System Cleaner compare to other Fuel Additives?
The category's most-reviewed alternative is the Chevron 67740-CASE Techron Concentrate Plus Fuel System (4.6/5, 16,871 reviews, $39.98). The Pro-Line Gasoline System Cleaner carries a Mubboo Score of B vs B+.
Sources & References
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.