Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)
- DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning and preventing corrosion in fuel systems
- PERFORM AND PROTECT: Fuel additive cleans injectors, carburetors, valve and combustion chamber deposits with a powerful, concentrated blend …
- EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation
- EASY TO USE: Use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment
- 15 Ounce (2 Pack)
Mubboo Value Score: 5.0/10
How it stacks up
Rated 4.8/5 — better than 100% of 53 Fuel Additives we track. Premium-tier pricing at $30.99.
Head-to-Head vs Category Leader
| Red Line | Lucas Oil (Leader) | |
|---|---|---|
| Price | $30.99 | $9.89 |
| Rating | 4.8/5 | 4.8/5 |
| Reviews | 9,236 | 24,615 |
| Mubboo Score | 5.0/10 | 9.0/10 |
The Red Line 60103 SI-1 Complete Fuel System Cleaner, matches or exceeds the category leader in rating at a similar price point.
Quick Specs
- Size
- 15 Fl Oz (Pack of 2)
- Unit Count
- 30.0 Fluid Ounces
- Item Volume
- 15 Fluid Ounces
- Part Number
- 60103
- Manufacturer
- Red Line
- Model Number
- 5
- Number of Items
- 2
- Special Feature
- Concentrated
What reviewers 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.
Rating reliability
About Red Line
- 20 products in our database
- Average rating: 4.8/5 across all products
- Price range: $12.79 – $519.96
- Categories: Fuel Additives, Motor Oil
Other Fuel Additives
Frequently Asked Questions
Is the Red Line Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and worth buying in 2026?
It earns a Mubboo Score of 5.0/10, with a 4.8/5 rating from 9,236 reviews — better than 100% of Fuel Additives we track.
How much does the Red Line Red Line 60103 SI-1 Complete Fuel System cost?
It is currently $30.99 — premium-tier pricing for Fuel Additives.
How does it compare to the top-rated Fuel Additives?
The Red Line 60103 SI-1 Complete Fuel System Cleaner, matches or exceeds the category leader in rating at a similar price point.
Sources & References
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