What if you can't go on highway my car won't go past 30mph?

I don't believe that it will help if your car will not go above 30. Sounds like something more serious with your vehicle.

How many miles will this take to unclog a 2005 sentra 1.8l cat, that revs only to 2700 rpm, with no error codes?

It sounds to me as if your cat is beyond repair. If you’ve already used a bottle it should fix it pretty quickly. If your car runs no better, you need a new converter. That’s what happened to me, I had to buy a new converter.

Once you add this product to the gas tank what is the rest of the process?

add the product to the gas tank when it close to empty - for me that was about 2-3 gallons remaining - then really ran the car hard (like I stole it) - - filled the tank with high test and some injector cleaner- and again ran the car hard - check engine light stayed off for a good 6-8 hundred miles - more than long enough to pass NC emissions test - the light did eventually come back on - but then realized it was the fuel my wife purchased - - as I had her fill up with a different brand and light turned off

One person posted that they used a combination of "cataclean and solder it" in the gas tank? what is solder it - can anyone post a link?

Never heard of that but you shouldn't have to mix anything with our Cataclean

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Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 16 oz | Pass Emissions Tests – Clear Check Engine Lights, Restore Catalytic Converters, and Cleans Fuel Systems (120007)

Product ID: 2326665

Details

Brand
Cataclean
Item Form
Liquid
Material Feature
Non-Toxic
Scent
Unscented
Specific Uses For Product
Engine

⛽Boosts fuel economy & engine power

✅Clears check engine lights fast

🔥Cuts carbon buildup by 50%

11248 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⛽ Clean fuel, clear conscience, and zero emissions drama!

PASS EMISSIONS TESTS LIKE A PRO - Slash hydrocarbon emissions by up to 50% and breeze through smog checks with confidence.
SAY GOODBYE TO CHECK ENGINE WORRIES - Resolve common error codes (P0420, P0430, etc.) and avoid costly repairs with a simple fuel additive.
EFFORTLESS MAINTENANCE MAXIMUM IMPACT - Just pour into your fuel tank—no tools, no hassle, 50-state legal, and safe for gasoline, diesel, and hybrids.
FUEL EFFICIENCY MEETS PEAK PERFORMANCE - Clean fuel injectors and cylinder heads for smoother combustion and noticeable mileage gains.
EXTEND YOUR CATALYTIC CONVERTERS LIFE - Prevent carbon buildup to keep your converter running efficiently and save on replacements.

Cataclean Fuel & Exhaust System Cleaner is a powerful 16oz liquid additive designed to reduce carbon buildup by up to 50%, improve fuel economy, restore catalytic converter efficiency, and clear common check engine light codes. Easy to use and compatible with gasoline, diesel, and hybrid engines, it helps vehicles pass emissions tests while enhancing overall engine performance.

Specifications

ASIN	B002BVXM92
Best Sellers Rank	#655 in Automotive ( See Top 100 in Automotive ) #4 in Fuel System Cleaners
Brand	Cataclean
Brand Name	Cataclean
Contains Liquid Contents?	Yes
Customer Reviews	4.2 out of 5 stars 15,549 Reviews
Global Trade Identification Number	00852135002004
Included Components	CATACLEAN EXST SYS/
Item Form	Liquid
Item Type Name	CATACLEAN EXST SYS/
Item Volume	500 Milliliters
Item Weight	0.85 Pounds
Manufacturer	Mr. Gasket Co.
Material Feature	Non-Toxic
Material Features	Non-Toxic
Model Number	120007
Number of Items	1
Part Interchange Info	120007
Part Number	120007
Scent	Unscented
Size	1 Fl Oz (Pack of 1)
Special Features	Alcohol Based
Specific Uses For Product	Engine
Surface Recommendation	Acrylic
UPC	852135002004
Unit Count	1.0 Fluid Ounces
Warranty Description	LIMITED WARRANTY

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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.

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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.

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

1 month ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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11248 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered 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 Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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