Fuel Additive Mixing Ratio Chart: Red Line SI-1 / Chevron / 3M / DIY Formula
When adding fuel system cleaners or PEA-based additives, following the manufacturer’s ratio is key to achieving the best cleaning results without affecting combustion stability. This chart provides a quick reference for common additives in Liters/ml.
Mixing Ratio Reference Table (Additive per 25L/27L Gasoline)
| Additive Brand / Type | Per 25L Gas | Per 27L Gas | Dosage Level |
|---|---|---|---|
| Red Line SI-1 | 150 ml | 162 ml | High-intensity Cleaning |
| Red Line SI-1 | 75 ml | 81 ml | Regular Maintenance |
| Chevron Techron CP | 200 ml | 216 ml | Standard Dose |
| 3M IPA (Water Remover) | 92 ml | 100 ml | Standard Dose |
| DPC Mix (DIY) | 300 ml | 325 ml | Standard Dose |
Detailed Formula Analysis
1. Red Line SI-1 (Fuel System Cleaner)
Red Line SI-1 is highly concentrated with PEA.
- High-intensity: Used for cleaning heavy carbon deposits. One full bottle (approx. 443ml) is typically rated for a full 60-70L tank.
- Maintenance: Adding a smaller amount every fill-up keeps the fuel injectors and valves clean.
2. Chevron Techron Concentrate Plus
A widely recognized PEA additive. Its standard concentration is slightly lower than Red Line’s high-intensity dose, making it very safe for sensitive sensors.
3. 3M IPA-based Water Remover
Primarily used to emulsify moisture in the fuel tank so it can be burned off. Over-dosage isn’t recommended as excessive IPA (Isopropyl Alcohol) can affect certain rubber seals over long periods.
4. DPC Mix (DIY Pre-mix Formula)
This is a custom mixture used by some advanced DIYers to improve lubricity and clean the fuel system cost-effectively.
- Pre-mix Ratio: * Diesel: 2 Liters
- Paraffin (Kerosene): 0.5 Liters
- Cleaning Naphtha: 0.1 Liters
- Dosage: 300ml of this mix per 25L of gasoline.
- Final Concentration in Tank: * Diesel < 1%
- Paraffin < 0.2%
- Cleaning Naphtha < 0.05%
Pro Tip for Gas Station Visits
I suggest using a graduated cylinder or a small marked bottle to pre-measure your dose. Add the additive before you start pumping gas; the incoming flow of gasoline will ensure the additive is thoroughly mixed in the tank.