Do you need to change your oil after using this through a full tank of gas?

No need to change oil. This is a fuel additive that cleans fuel injectors to better mileage. Does work.

Is this ok as y to use with diesel engines?

NO....use the one for diesel (Red Line 85 Plus Diesel Fuel Additive (12 oz.) (Quantity 1)) It is also available on Amazon in several qtys.

does this also help clean the catalytic converter?

Maybe it cleans fuel system and injectors. Help clean the CAT? Sorry, I can't answer that question.

Has anyone tried using this as for an engine flush? What were the results?

No, and why use it as an engine flush? This product was formulated and meant to be used as a fuel system cleaner and it's an effective one, at least in my case. I've been using in the past 4 years on 3 different vehicles. Best results you'll really notice is using it every 15-20k. Using it more frequently is just a waste. Now, going back to engine flush question, I've used BG EPR. I used it on my wife's 2010 CRV with 150k and0

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (4 Pack)

Product ID: 9408228

Details

Brand
Red Line
Item Form
Liquid
Material Feature
Unscented
Scent
Unscented
Specific Uses For Product
Fuel System

⛽Cleans fuel injectors & carburetors

🔥Boosts fuel burn efficiency

🛡️Prevents corrosion in fuel system

€ 151.63

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Description

⛽ Drive cleaner, burn smarter, and protect like a pro!

TRUSTED BY THOUSANDS - Top-ranked with 4.8-star reviews and #1 in Fuel System Cleaners—join the elite drivers who demand the best.
FUEL EFFICIENCY BOOSTER - Enhances gasoline stability and reduces gum buildup, saving you money at the pump.
ONE TANK POWER TREATMENT - Just one bottle per tank delivers nearly 100% cleaning efficiency—fast and hassle-free.
CORROSION DEFENSE FORMULA - Protects your fuel system from rust and wear, extending engine life and reliability.
ULTIMATE FUEL SYSTEM DETOX - Eliminates deposits from injectors, valves, and combustion chambers for peak engine performance.

Red Line 60103 SI-1 Complete Fuel System Cleaner is a powerful, concentrated additive designed to clean and prevent corrosion in fuel systems. It effectively removes deposits from injectors, carburetors, valves, and combustion chambers, improves fuel stability, and reduces gum and varnish buildup. Each 15-ounce bottle treats one tank with nearly 100% efficiency, sold in a convenient 4-pack. Highly rated and trusted by professionals, it’s the ultimate maintenance upgrade for any vehicle.

Specifications

ASIN	B00NQB6O0A
Best Sellers Rank	#61 in Automotive ( See Top 100 in Automotive ) #1 in Fuel System Cleaners
Brand Name	Red Line
Customer Reviews	4.8 4.8 out of 5 stars (10,368)
Included Components	Fuel System Cleaner
Item Form	Liquid
Item Type Name	Fuel System Cleaner
Item Volume	425 ml
Item Weight	3.9 pounds
Manufacturer	Red Line
Material Features	Unscented
Model Number	60103
Number of Items	4
Part Number	60103-4-
Scent	Unscented
Size	15 Fl oz (Pack of 4)
Special Features	Reduces need for octane by up to two points
Specific Uses For Product	Fuel System Cleaner
UPC	737534816455
Unit Count	60 Fluid Ounces

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 151.63

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews