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5.0 Based on 3 Reviews
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Andrij B.
Canada Canada
Quality delivery as said

Excellent in every way

True performance improvement

Just received this 2 days ago, put a few ounce in when refuelling, and immediately feel the resualt. Engine is running smooth just like when I brought the car. Mileage improved. Definitely recommend this product for everyone. Side note: don't forget to change your oil immediately after you used up a tank of gas mixed with redline fuel system cleaner

Performance Improvements

Thanks for the five star review! Just a note, SI-1 Complete Fuel System Cleaner is safe for continual use. While in theory it makes sense that you don't want anything that isn't oil in your engine, if everything is sealing well, there should be no chance of fuel making it into your crankcase.

Yan L.
Redline SI-1 = good stuff

This is not your usual cheap fuel additive you buy at CT. This uses a special formulation of enzymes that actually turn carbon buildup on your injectors into calcium and it flushes away in your engine oil. I always use a full bottle on my newly acquired used cars and the follow up with small doses once in a while. Make sure to do an oil change soon after you burn through your treated fuel tank. Also this product works while the car is turned off so dont waste a bottle of this good stuff on a road trip.

Performance Improvements

Thanks for the five star review Yan! Safe for continual use, this treatment can clean injectors to nearly 100 percent efficiency in just one treatment. The cleansing effect on your injectors can raise fuel economy approximately 12 percent or so, depending on the condition of your injectors.

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