Red Line 60103-2PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 2)

I first of All received the product much ahead of time. So the Delivery was very instant. Very well packed. Thanks to the seller. I used this to my Mercedes c350 and Porsche 991.1. You can feel instant difference. If you buy it, you will not regret it!

Not Good Quality

Great product. I had an engine light on, due to the egr cooler not working, and when I used 2 bottles consecutively, the light came off.

Fácil de utilizar. El motor responde normal después de llenar el tanque. Espero que se vean sus resultados en el futuro.

Red Line SI-1 is easy to use and works well. My engine runs smoother and feels more responsive. I’d recommend it for anyone looking for a quality fuel system cleaner.

This fuel additive is grea for Gasoline Direct Injection (GDI) and turbocharged vehicles that suffer from rapid carbon buildup. It’s formulated with Polyetheramine (PEA), which is widely recognized as the most potent detergent available for dissolving stubborn engine carbon deposits—and has one of the highest concentrations of PEA on the market. PEA possesses the extreme thermal stability required to survive the intense heat of the combustion chamber. This allows it to break down and cleanly burn off deposits clinging to fuel injectors, intake valves, piston crowns, and cylinder heads. If a fuel system/injector cleaner doesn’t contain PEA, it’s useless against carbon deposits. It smooths rough idling, engine shuddering, and hesitation during acceleration and restores proper fuel injector spray patterns to optimize the air-fuel mixture to maximize gas mileage and reduce fuel blowby and oil dilution. It also contains a synthetic upper cylinder lubricant that leaves a protective film on the upper cylinder walls, valve stems, and upper piston areas which reduces wear, improves ring seal and contributes to a quieter, smoother idle and more efficient engine performance. Pour it into your gas tank before a fill-up then just drive as normal—although I find it’s slightly more effective to use on an extended highway trip when the engine experiences sustained use at full operating temperature. I’ve used it in two consecutive tanks as a first “shock treatment,” then again 300 miles before each oil change. It’s safe to use as much as every 3,000-5,000 miles, If you prefer continuous protection, you can add a smaller maintenance dose of 1.5 to 2 ounces per 10 gallons of fuel at every fill-up. Highly recommended!

Produits fonctionne nettement mieux que les Produits vendus par les concessionnaires. Je le recommande fortement et à chaque entretien du véhicule je vais en faire usage pour un bon rendement du véhicule