Red Line Oil 60103 Complete SI-1 Fuel System Cleaner (15 oz)

A good amount of difference felt and smoothness ... A good cleaner to use often ... world wide recognition for this brand... will be buying it frequently.. First time users empty the whole bottle in fuel tank when nearing empty and fill full tank fuel and use the whole fuel up to almost empty before refilling.. and then for regular usage half bottle is enough for one full tank.. IMPORTANT : THIS IS NOT A PERFORMANCE PRODUCT...

An absolute bliss of product. Engine smoothens out completely and can be felt definitive. Used this vehicle for my 15 year old car (Swift), 24 year old bike (Kawasaki 125 cc, two stroke), Jawa 42 and Harley Street 750. Effect was pronounced in all vehicles and is a great product to use. Shall use this product all the time, so shall request the sellers to make available always.Every vehicle can use.....

I have used on my bike, every tank full, i used just 3 caps per tank full, for 5 consecutive times, i run an Fi himalayan, the responsiveness is amazing, lowers the machanical sounds and the engine feels really smooth. I recommend this product

Okay I think I am the one who is wring a latest review of this. Well used it on my VW Vento 2011. Added it and filled 60L of Fuel. Ran the vehicle for around 600 KMS. Vehicle was smooth. Dint feel any jerks or so. I dint see any drastic increase in Mileage atleast. It was same as before. May be I may need to use it once again to see the difference. May be so. Not sure should use it again or not. But since it had the highest PEA, hope it did its job which is not visible to the eyes. May use it again and put review here. And the Packaging by STS was Very very Good. Kudos to the team.

I have used this product many times, it cleans the FI and engine. Really worthy when you use it on High Rev engines

good product. engine running being smooth after using this. I used it in my Hyundai I10 after 40000 km.

Lubricating action is seen immediately. The best way to use is to add quarter bottle into a full tank. BTW I am using it on diesel engines also and saw HP boost and smoothness. As for petrol engines, it is a cracker.

Good product does its job well

ممتاز واستخدمته لكامري 2022

Este sí tiene los elementos para que realmente ayuden al motor y otros elementos como los inyectores, tiene los materiales que linouan y cuidado con otros que solamente dañan empaques.

Great product, sorted my mini rough idlying. I used a full bottle with half a tank of fuel to get a better concentration.

Am using additive every 6 months in my BMW, injectors are super clean now, missfire is gone, highly recommend, Red Line only one product with safe components which is not affecting seals and other engine components.

If you are looking for a fuel additive that actually does what it claims, Red Line SI-1 is the one. Unlike a lot of cheap off-the-shelf additives that are mostly just alcohol, this stuff is packed with high concentrations of Polyether Amines (PEA) the heavy-duty detergent that actually survives the combustion process to scrub carbon deposits off your fuel injectors and intake valves. ​I have been on a bit of a vehicle maintenance kick lately 🧰. Between keeping my tire pressure perfectly dialed in with my new portable air compressor and running a bottle of this SI-1 through a full tank of gas, my ride is running smoother than it has in years. A slight rough idle I had has completely leveled out, the throttle response feels much crisper, and I am even seeing a slight bump in my fuel economy. ​It is incredibly easy to use just pour the bottle into your gas tank right before a fill-up so it mixes properly. Whether you are trying to clear up a hesitation issue or just doing preventative maintenance to keep your engine healthy, this is the absolute best product on the market. Highly recommend 😁!