Fuel Injector Cleaner

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Fuel Injector Cleaner | gasoline & diesel

AMSOIL P.i.® Usage & Dosage Guide

Tank Size Fuel Amount (Gallons) Recommended P.i.® Dose Notes
Small Under 10 gal (38 L) Half bottle (6 oz / 177 mL) Ideal for motorcycles, compact cars
Standard 10–20 gal (38–76 L) One full bottle (12 oz / 355 mL) Most cars, trucks, SUVs
Large 20–30 gal (76–114 L) 1.5 bottles (18 oz / 532 mL) Light-duty diesel trucks or large SUVs
Extra Large Over 30 gal (114 L) Max 2 bottles (24 oz / 710 mL) Never exceed 2 bottles per fill-up

⚠️ Important Dosage Notes

🚫 Do not exceed 2 bottles per tank, regardless of tank size. Overdosing provides no added benefit.

💡 For best results, apply with a full tank of gasoline.

✅ AMSOIL P.i.® Safe for all gasoline engines, including turbocharged and GDI.

Ah, fuel injectors. Those tiny but mighty electronic valves in your engine, responsible for spraying fuel into the combustion chamber. They have a simple job: ensure your engine gets exactly the right amount of fuel. It sounds easy but in reality, life isn’t always so clean. Your injectors can get dirty, sluggish, and even downright lazy, impacting fuel efficiency, power, and forcing you to head to the gas station more often than your credit card likes.

Enter AMSOIL P.I. Performance Improver, the best fuel injection cleaner on the market. Not convinced yet? Stick around, and we’ll explain why AMSOIL is your ticket to cleaner injectors, better fuel economy, and fewer dirty looks from your mechanic.

 

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When should you use fuel injector cleaners?

Listen, we’ve all seen that dreaded check engine light. Usually, it’s something small like dirty fuel injectors causing inefficient combustion and reduced fuel economy. But before you panic and start googling insurance companies and auto insurance deductibles, consider using AMSOIL P.I. Performance Improver.

Dirty fuel injectors can rob gasoline engines – and let’s not even get started on diesel engines – of their power and performance.

Here’s when you should use fuel injection cleaner:

  • Noticeably worse fuel economy
  • Rough idling or hesitation
  • Poor throttle response
  • Excessive emissions or failed emissions tests
  • You can’t remember the last time your injectors were cleaned

Older vehicles especially benefit from routine use, restoring them to their original condition. But even modern engines in newer vehicles can improve long term performance with regular doses of AMSOIL.

P.I. Petrol Injector CleanerAMSOIL P.I. Review

Performance Improver gasoline fuel additive scrubs away power-robbing deposits from the fuel injectors, cylinder valves, and combustion chamber to restore as much as 14% of lost horsepower in a single tank of gas. It’s also perfect for controlling knock and restoring 100% flow rate in GDI petrol engines.

Fuel Injector Cleaning Treatment: 12 oz. Fuel Injector Cleaner for 113.5 liters / 30 gal.

(CPI)  customer review
12 oz. bottle

Fuel Injection Additive AMSOIL Diesel 4-IN-1Diesel Injector Cleaner Review

4-IN-1 Diesel fuel injector cleaner treatment is the ideal all-season product to prevent gelling, diesel fuel cleaners, diesel engine cleaning and boost cetane content for all diesel engines.

Fuel Injector Cleaning Treatment: 16 oz. for 151.5 liters / 40 gal.

(ADB)  customer review
16 oz. bottle

Rolling Coal With Clean Injectors

Think your diesel engine is bulletproof? It has been until now, but maintenance keeps it that way. Those high-pressure fuel injectors need to hold back as much as 36,000 PSI, and you don’t have to imagine very long what happens if they’re dirty and can’t close completely. Thankfully, AMSOIL offers diesel 4-IN-1 fuel injector cleaners to keep them pulsing properly, no matter how hard you work the throttle.

AMSOIL Diesel Fuel Injector Cleaner is formulated to clean dirty injectors, restore power and torque, and reduce smoke and emissions. It also lubricates pumps and injectors to minimize wear, ultimately reducing downtime and maintenance costs. A 30 ml/ 1 ounce dose treats up to 9.5 liters/ 2.5 gallons of fuel, making it a cost-effective solution for maintaining your diesel engine’s performance.

For comprehensive protection, Diesel 4-IN-1 combines the benefits of Diesel Injector Clean, Diesel Cold Flow, and Diesel Cetane Boost into a single package. It delivers outstanding detergency, improved lubricity, better cold flow, and higher cetane. This additive provides excellent all-season performance, ensuring your diesel engine operates smoothly whether it’s blistering hot or freezing cold out. One ounce treats up to 2.5 gallons of fuel.

Can You Add Fuel Injector Cleaner To a Full Tank?

Absolutely! You don’t have to wait for an empty tank. AMSOIL fuel injector cleaners can be added to a full tank, half tank, or anything in between. Unlike your separate high-interest savings account, fuel injection cleaner doesn’t come with strict criteria to get the benefits – it’s easy and effective.

Pouring the entire contents into your fuel tank ensures the best results, mixing instantly with your fuel. Just keep an eye on the treat rate as AMSOIL’s recommended amount treats up to 20 gallons. Good thing AMSOIL made it easy – no math degree required!

Does Fuel Injection Cleaner Really Work?

We get it, skepticism is healthy, especially when every brand claims to be the best fuel injection cleaner. But does it really work?

Yes, and especially AMSOIL’s gasoline fuel injector cleaner Performance Improver (P.I.)

  • Removes harmful carbon deposits from dirty fuel injectors and combustion chambers.
  • Restores fuel efficiency and vehicle’s performance.
  • Provides much higher detergent content than competitors like Chevron Techron, Lucas Fuel Injector Cleaner, LIQUI MOLY, and even the famed BG Products.
  • Cleans the entire fuel system, including fuel rail, intake manifold, and catalytic converters.
  • Helps reduce harmful effects on spark plugs, fuel pumps, and turbocharged engines.

With AMSOIL, you’re investing in better performance and fuel economy, meaning fewer trips to the gas station and more smiles per gallon.

Proper Steps To Use Fuel Injector Cleaner

Alright, let’s make sure you’re getting every ounce of cleaning power from AMSOIL’s magic elixir:

 

Step Instructions
Step 1: Grab your Injector Cleaner Free shipping is always available today on orders over $100 USD or $130 CAD, making AMSOIL the best seller fuel additive among those who care about their vehicles.
Step 2: Pick your fuel If your vehicle uses high-octane fuel, diesel fuel, or just standard gasoline, AMSOIL has you covered. It works great in gasoline engines (P.I.), diesel engines (4-IN-1), older vehicles, and even those sleek modern engines.
Step 3: Pour in the goodness Pour the entire contents of the bottle directly into your fuel tank. It’s like giving your injectors a little medical care, minus the doctor’s bill.
Step 4: Drive normally Take your car for a good drive. Don’t be shy about highway speeds and hard acceleration – this helps the cleaner circulate throughout the fuel injection system and find the nasty bits it needs to break down.
Step 5: Reap the benefits Watch as your fuel consumption decreases, your vehicle’s performance improves, and your mechanic starts sending you fewer reminder emails. It’s that simple.

 

Use AMSOIL P.I.® Performance Improver on its own and see the success.

But it’s even better paired with other AMSOIL products like Upper Cylinder Lubricant and Dominator Octane Boost.

And if you’re into powersports or motorcycles, there are dedicated products for you too!

Why Choose AMSOIL Fuel Additives?

Look, Amazon Business or Walmart shelves might tempt you with Lucas Fuel Injector Cleaner, Chevron fuel system cleaner, or B-12 Chemtool Fuel Injector Cleaner, but AMSOIL Injector Cleaners and Fuel Additives have a proven track record:

 

  • Best product for cleaning fuel injectors and enhancing fuel efficiency.
  • Carefully balanced active ingredient formulation.
  • Trusted by countless vehicle owners across Canada and the United States, from Iqaluit, Nunavut to Maui, Hawaii and Wilmington, North Carolina.
  • AMSOIL stands by its product, providing full transparency through safety data sheets, ensuring you know exactly what’s going into your fuel system.

Need Help Deciding?

We get it, choosing the right fuel injection cleaner can feel overwhelming. But don’t overthink it; P.I. Performance Improver and 4-IN-1 take the guesswork out of vehicle maintenance. It’s the best fuel additive to clean your injectors and boost your ride’s fuel economy. And remember, a clean engine runs smoother, saves money, and brings joy to every trip.

Your fuel system deserves hard work without you having to do any. AMSOIL is your partner in effortless vehicle care, providing lasting benefits for your engine’s health. Clean injectors mean better performance, fewer fill-ups, and more cash for important things—like snacks for your next road trip.

So why wait until your vehicle sputters and coughs its way to embarrassment? Add fuel injector cleaner to your order today, because the only good fuel injector cleaner is the one that actually works. And guess what? AMSOIL absolutely does.

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Can I use diesel injector cleaner in a pertrol engine?

That is a good question — and the answer is no, you should not use a diesel injector cleaner in a petrol (gasoline) engine.

 

Fuel Injection Cleaners for Diesel and Petrol Engines Are Very Different

Diesel Injector Cleaner Gasoline Injector Cleaner
Designed for high-pressure diesel systems Designed for spark-ignited fuel systems
Contains detergents and lubricants for diesel fuel properties Formulated to clean lighter gasoline-based carbon deposits
Helps restore injector spray patterns and fuel efficiency Helps reduce hesitation and rough idling in gasoline engines

⚠️ Using Diesel Cleaner in a Gasoline Engine Could

  • Damage sensors or fuel components due to incompatible additives
  • Affect combustion or cause engine knocking
  • Void warranties if it causes fuel system issues

✅ What You Should Use

For a gasoline engine, stick to a gasoline-specific fuel system cleaner like:

AMSOIL P.i.® (first choice)

Chevron Techron (second choice)

Sea Foam (gas version) (third choice)

These are made to safely clean injectors, valves, and combustion chambers in gas-powered vehicles.

Petrol fuel additives

Upper Cylinder
Lubricant

(UCL)

customer review

Upper Cylinder Lubricant

Gasoline Stabilizer
Petrol Fuel

(AST)

customer review

petrol stabilizer

DOMINATOR®
Octane Boost

(AOB)

customer review

DOMINATOR® Octane Boost

Quickshot®
Petrol Fuel

(AQS)

customer review

Quickshot® Fuel System Cleaner

Diesel fuel additives

Diesel Injector
Cleaner

(ADF)

customer review

Diesel Injection Cleaner

Diesel Cetane
Boost

(ACB)

customer review

Diesel Cetane Boost

Diesel Injector Clean
Plus Cetane Boost

(ADS)

customer review

Diesel Injection plus Cetane Boost

AMSOIL
Diesel Recovery

(DRC)

customer review

Diesel Recovery
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