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 – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)

Product ID: 256639325

Details

Brand
Cataclean
Item form
Liquid
Material features
Non-Toxic
Scent
Unscented
Specific uses for product
Engine

⛽Boosts fuel economy & MPG

🔥50% hydrocarbon emission cut

🛠️Clears check engine codes

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2931151₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗💨 Clean fuel, clear lights, and unstoppable drives!

FUEL EFFICIENCY ON POINT - Clean fuel injectors and cylinder heads for optimized combustion and better mileage.
CHECK ENGINE LIGHT SAVIOR - Eradicate common trouble codes like P0420 & P0171 without costly repairs.
SMOG TEST READY EVERY TIME - Pass emissions with confidence and stay street-legal in all 50 states.
CATALYTIC CONVERTER LIFESAVER - Prevent carbon build-up to extend the life and efficiency of your catalytic converter and DPF filters.
EFFORTLESS MAINTENANCE RITUAL - Pop, pour, and go—no tools or mechanic needed. Safe for gas, diesel, and hybrid engines.

Cataclean Fuel & Exhaust System Cleaner is an EPA-approved, patented formula designed to reduce carbon build-up, clean catalytic converters, DPF filters, oxygen sensors, and fuel injectors. It lowers hydrocarbon emissions by up to 50%, improves fuel economy, and clears common check engine light codes, helping vehicles pass emissions tests across all 50 states. Easy to use and safe for gasoline, diesel, and hybrid engines, Cataclean is the go-to quarterly maintenance essential for a healthier, more efficient engine.

Specifications

ASIN	B002BVXM92
Best Sellers Rank	#10,636 in Automotive ( See Top 100 in Automotive ) #27 in Automotive Fuel System Cleaners
Brand Name	Cataclean
Contains Liquid Contents?	Yes
Customer Reviews	4.2 4.2 out of 5 stars (9,749)
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 Features	Non-Toxic
Material Type Free	gas free
Model Number	120007
Number of Items	1
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	473 Milliliters

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