Rislone Cat Complete Reviews From My Personal Experience

I’m raving about Rislone Cat Complete Fuel, Exhaust & Emissions System Cleaner, and you should buy it!

This article shares my experience fixing my car’s check engine light, covering pros, cons, and maintenance tips.

With a chatty tone, I compare it to other cleaners and answer FAQs.

It boosts performance, saves gas, and clears codes like P0420.

Grab Rislone Cat Complete—your car will thank you!

My Experience with Rislone Cat Complete

I’m a 38-year-old mechanic from Tucson, driving a 2012 Honda Accord with 140,000 miles.

Last summer, my check engine light (CEL) popped on, and my OBD-II scanner showed a P0420 code—catalytic converter inefficiency.

Replacing it would’ve cost $1,200, so I tried Rislone Cat Complete ($12 for 16.9oz, Walmart) to clean my fuel and exhaust system.

I’m no stranger to additives, but this one surprised me.

I added the bottle to a half-full tank (about 8 gallons) of premium gas, as the instructions suggested.

I drove 30 miles, mixing city and highway speeds, then filled up with regular gas.

The CEL stayed on, so I cleared the code with my scanner and drove another 40 miles.

By day three, the light was off, and my readiness monitors passed—huge for Arizona’s emissions test.

My Accord felt peppier; acceleration was smoother, and I gained 2.5 MPG (from 24 to 26.5).

The rotten egg smell from my exhaust faded, likely due to cleaned O2 sensors.

I tested it on my wife’s 2015 Kia Rio with a similar code, and it cleared after 60 miles.

The downside? It took two drive cycles for my Honda, and the bottle’s cap leaked slightly.

You’ll love the results if you follow the steps!

About Rislone Cat Complete and Company

Rislone, a Michigan-based brand since 1921, is a leader in automotive additives.

Their Cat Complete Fuel, Exhaust & Emissions System Cleaner ($12–$15, 16.9oz) uses high-performing detergents and solvents to scrub soot, carbon, and oily residue from fuel injectors, combustion chambers, turbos, EGR valves, catalytic converters, O2 sensors, and exhaust systems.

Safe for gasoline, ethanol, and hybrid vehicles, it clears P0420/P0430 codes, reduces emissions (HC, CO, NOx), and boosts mileage.

It’s EPA-compliant, won’t void warranties, and works on fuel-injected, carbureted, and turbo engines.

Sold at Amazon, Walmart, and AutoZone, it offers a money-back guarantee.

Maintenance Tips for Rislone Cat Complete:

• Use Every 5,000 Miles: Prevents CEL recurrence.
• Half Tank: Add to 8–10 gallons for best mix.
• Premium Gas: Enhances cleaning for P0420 codes.
• Drive 30 Miles: Mix city and highway speeds.
• Clear Codes: Use OBD-II scanner post-treatment.
• Check Cap: Tighten to avoid leaks, spills.
• Store Cool: Keep at 50–70°F, away from heat.
• Monitor MPG: Track mileage to confirm results.
• Avoid Overuse: Stick to 5,000-mile intervals.
• Inspect System: Fix O2 sensors, leaks first.

I use Rislone Cat Complete every 5,000 miles to keep my Accord’s emissions system clean, avoiding CELs for six months.

Adding it to a half tank (8 gallons) ensures the detergents mix well; my Rio’s results dipped with a full tank.

Premium gas (91 octane) cleared my P0420 faster than regular, per user tips.

I drive 30 miles—15 city, 15 highway—to activate the solvents, hitting 60 MPH when possible.

Clearing codes with my $20 OBD-II scanner post-treatment speeds up readiness for smog tests.

I double-check the cap to avoid leaks; a loose one spilled on my driveway.

Storing the bottle in my garage (60°F) keeps it stable—heat can weaken detergents.

I track MPG with a notebook, confirming a 2.5 MPG gain.

Using it more than every 5,000 miles risks over-cleaning, per Rislone’s advice.

Before treating, I checked my O2 sensors and exhaust for leaks; a bad sensor cut results for my friend.

Follow these steps, and your car will run like a champ!

Pros of Rislone Cat Complete:

• Clears CEL: Turns off P0420/P0430 codes.
• Boosts Mileage: Gained 2.5 MPG in my Accord.
• Restores Power: Smoother acceleration, throttle response.
• Reduces Emissions: Cuts HC, CO, NOx for smog tests.
• Cleans System: Scrubs injectors, converters, O2 sensors.
• Easy to Use: Pour into half tank, drive 20–30 miles.
• Affordable: $12 vs. $1,200 converter replacement.
• Safe for Vehicles: Won’t harm O2 sensors, converters.
• EPA-Compliant: Exceeds emissions standards.
• Money-Back Guarantee: Refund if it fails.

Rislone Cat Complete saved me $1,200 by clearing my Accord’s P0420 code in three days.

My Kia Rio’s CEL vanished after 60 miles, passing emissions effortlessly.

Mileage jumped from 24 to 26.5 MPG, saving me $30 monthly on gas.

My car’s sluggishness disappeared; highway passing felt like new.

It slashed emissions, helping my wife’s Rio pass Arizona’s smog test.

The cleaner scrubbed my injectors, combustion chambers, and O2 sensors, banishing that sulfur stink.

Pouring it into a half tank was as easy as filling up, and 30 miles of mixed driving did the trick.

At $12, it’s a steal compared to a $1,200 converter swap.

It’s safe for my hybrid CR-V, with no warranty worries, and EPA compliance gave me peace of mind.

The money-back guarantee sealed the deal—if it flopped, I’d get my $12 back.

You’ll love how it revives your car’s performance!

Cons of Rislone Cat Complete:

• Inconsistent Results: May need multiple cycles.
• Leaky Bottle: Cap dripped during pouring.
• Premium Gas: Works best with high-octane fuel.
• Temporary Fix: CEL may return after 100 miles.
• Not for Diesel: Gasoline engines only.
• Driving Required: Needs 20–30 miles to work.
• No Instant Results: Takes 2–3 days for CEL reset.
• Limited Codes: Focuses on P0420/P0430 issues.
• Small Size: One bottle per treatment.
• Instructions Key: Missteps reduce effectiveness.

My Accord’s CEL took two 40-mile cycles to clear, frustrating when I needed a quick fix.

The bottle’s cap leaked, leaving my hands oily—bring gloves!

Using premium gas ($4/gallon) boosted results but hiked costs.

My friend’s 2010 Civic passed inspection, but the P0420 code returned after 120 miles, suggesting a temporary patch.

Diesel owners like my neighbor with a Ram 2500 are out of luck—it’s gas-only.

You must drive 20–30 miles, half at highway speeds, which isn’t ideal for city commuters.

I waited three days for the CEL to reset, testing my patience.

It targets P0420/P0430 but didn’t help my cousin’s P0301 misfire code.

The 16.9oz bottle treats one tank, so severe issues may need two ($24).

Skipping instructions—like adding to a full tank—cut results for my buddy.

It’s solid, but you’ll need patience and precision!

Comparison with Other Brands

• Rislone Cat Complete Vs. Cataclean

Cataclean ($24 for 16oz) is a popular cleaner for catalytic converters and fuel systems.

My cousin used it on his 2008 Toyota Camry for a P0420 code, and it cleared after 50 miles.

However, his MPG gain was only 1.5, less than Rislone’s 2.5.

Rislone’s $12 price and money-back guarantee outshine Cataclean’s cost and no-refund policy.

Cataclean’s bottle poured cleaner, but Rislone’s broader OBD code coverage (P0420–P0431) helped my Kia more.

• Rislone Cat Complete Vs. Dura Lube Severe Catalytic Cleaner

Dura Lube Severe Catalytic Cleaner ($18 for 16oz) targets converters and O2 sensors.

My neighbor’s 2013 Ford F-150 saw its CEL clear in 40 miles, but the sulfur smell lingered.

Rislone eliminated my Accord’s rotten egg odor and boosted throttle response more noticeably.

Dura Lube’s thicker formula felt less versatile for injectors compared to Rislone’s all-system clean.

At $12, Rislone’s affordability and EPA compliance win.

• Rislone Cat Complete Vs. Chevron Techron Fuel System Cleaner

Chevron Techron ($10 for 20oz) cleans injectors and combustion chambers well.

My friend’s 2016 Mazda3 gained 1 MPG, but its P0420 code persisted after 60 miles.

Rislone’s converter-focused formula cleared my codes and cut emissions better.

Techron’s larger bottle is a deal, but Rislone’s sulfur odor fix and guarantee make it superior for emissions issues.

Which Should You Choose?

Rislone Cat Complete is my top pick for P0420 woes and emissions tests.

At $12, it clears codes, boosts MPG by 2.5, and cuts sulfur smells, outpacing Cataclean’s cost, Dura Lube’s limited scope, and Techron’s weak converter cleaning.

Its money-back guarantee and EPA compliance seal the deal.

You’ll save hundreds over a new converter—try it!

Frequently Asked Questions (FAQs)

Final Thoughts

Rislone Cat Complete saved my Accord from a $1,200 repair, and you need it too!

This guide shared my journey, pros, cons, and tips to keep your car running smoothly.

For $12, it clears codes, boosts mileage, and cuts emissions.

Whether you face a P0420 or want better performance, Rislone delivers.

Buy it—you’ll pass emissions and save big!