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Parts for your 2021 Lexus Is-Fuel injectors

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Nulon Petrol System Extreme Clean 500ml - PEC
30%OFF

Nulon Petrol System Extreme Clean 500ml - PEC

$35
$50
Fitment Notes:
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Fuel Doctor Fuel Conditioner 250ml
15%OFF

Fuel Doctor Fuel Conditioner 250ml

$22
$26
Fitment Notes:
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Nulon Petrol Injector Cleaner 150ml - PIC150
30%OFF

Nulon Petrol Injector Cleaner 150ml - PIC150

$12.60
$18
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Nulon Petrol Injector Cleaner 300ml - PIC
30%OFF

Nulon Petrol Injector Cleaner 300ml - PIC

$23.80
$34
Fitment Notes:
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Nulon Diesel Injector Cleaner 300mL - DIC
30%OFF

Nulon Diesel Injector Cleaner 300mL - DIC

$23.80
$34
Fitment Notes:
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Nulon Octane Boost & Clean 300ml - OBC
30%OFF

Nulon Octane Boost & Clean 300ml - OBC

$28.70
$41
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Explore 4WD & Adventure

Penrite Diesel Injector Cleaner 375ml - ADDIC375

Penrite Diesel Injector Cleaner 375ml - ADDIC375

$29
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Penrite Petrol Injector Cleaner 375ml - ADPIC375

Penrite Petrol Injector Cleaner 375ml - ADPIC375

$26
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Penrite Petrol Total System Cleaner 375mL - ADPTSC375

Penrite Petrol Total System Cleaner 375mL - ADPTSC375

$41
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Repco Petrol Injector Cleaner 300ml - RPIC

Repco Petrol Injector Cleaner 300ml - RPIC

$16
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Penrite Octane Booster Petrol 375ml - ADOCTB375

Penrite Octane Booster Petrol 375ml - ADOCTB375

$26
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Penrite Enviro+ DPF Cleaner 375ml - ADDPFC375

Penrite Enviro+ DPF Cleaner 375ml - ADDPFC375

$46
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Penrite Ultimate 6 in 1 Fuel Stabiliser 250ml - ADUFS250

Penrite Ultimate 6 in 1 Fuel Stabiliser 250ml - ADUFS250

$35
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Rislone Fuel Injector Cleaner 177mL - 44701

Rislone Fuel Injector Cleaner 177mL - 44701

$20
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Penrite Valve Shield Petrol Additive 250mL - ADVS250

Penrite Valve Shield Petrol Additive 250mL - ADVS250

$30
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Penrite Hybrid Injector Cleaner 375mL - ADHYB375

Penrite Hybrid Injector Cleaner 375mL - ADHYB375

$18
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Fuel Injector & Carby Cleaner Twin Pack - 8552

Fuel Injector & Carby Cleaner Twin Pack - 8552

$38
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Fuel Doctor Fuel Conditioner 1L - FDW03

Fuel Doctor Fuel Conditioner 1L - FDW03

$56
Fitment Notes:
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CRC Clean-R-Carb Carburetor Cleaner 400g - 5081
CRC

CRC Clean-R-Carb Carburetor Cleaner 400g - 5081

$31
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Valvoline Diesel Injector Cleaner 350ML-T/PAK - 8550

Valvoline Diesel Injector Cleaner 350ML-T/PAK - 8550

$38
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Flashlube Diesel Conditioner 50ml - FD50MX20B

Flashlube Diesel Conditioner 50ml - FD50MX20B

$7
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Penrite Diesel Winter Fuel Treatment 375ml - ADDWFT375

Penrite Diesel Winter Fuel Treatment 375ml - ADDWFT375

$28
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LIQUI MOLY Petrol Injection Cleaner 300ml - 2786

LIQUI MOLY Petrol Injection Cleaner 300ml - 2786

$30
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Repco Fuel System Cleaner 500mL - RFSC500

Repco Fuel System Cleaner 500mL - RFSC500

$35
Fitment Notes:
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Morey's Diesel Injector Cleaner 1L - MDIC

Morey's Diesel Injector Cleaner 1L - MDIC

$45
Fitment Notes:
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Rislone Petrol Fuel Treatment 500ml - 44700

Rislone Petrol Fuel Treatment 500ml - 44700

$43
Fitment Notes:
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Penrite Pro Series Petrol Fuel Boost 500ml - PSPFB0005

Penrite Pro Series Petrol Fuel Boost 500ml - PSPFB0005

$77
Fitment Notes:
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Penrite Diesel Fuel D-Tox 250ml - ADDTOX250
Clearance

Penrite Diesel Fuel D-Tox 250ml - ADDTOX250

$2
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Repco Diesel Injector Cleaner 300ml - RDIC

Repco Diesel Injector Cleaner 300ml - RDIC

$16
Fitment Notes:
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Euroquip Fuel System Conditioner 1L - B1LFS

Euroquip Fuel System Conditioner 1L - B1LFS

$128
Fitment Notes:
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Flashlube Injector Cleaner 50mL - FI50MX20B

Flashlube Injector Cleaner 50mL - FI50MX20B

$6
Fitment Notes:
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Showing 1 - 39 of 47 products

Fuel Injectors on the 2021 Lexus IS: What You Need to Know

The 2021 Lexus IS is a sleek, sophisticated sports sedan that combines luxury with performance. Under its bonnet, it features a modern engine management system, with fuel injectors playing a crucial role in its operation. If you're wondering whether fuel injectors are used in this model, the answer is a definite yes. Fuel injectors are an essential component in the 2021 Lexus IS, working to ensure smooth and efficient running of the engine.

Fuel injectors are responsible for spraying fuel into the engine's combustion chambers in a precise, controlled manner. Unlike older carburettor systems that rely on mechanical methods to mix fuel and air, fuel injectors use electronic signals to deliver an exact amount of fuel at the right time. This not only improves fuel efficiency but also reduces emissions and enhances overall engine performance.

On the 2021 Lexus IS, the injectors are part of a highly-tuned fuel injection system designed to work seamlessly with the engine's advanced computer. The fuel injector's job is to atomise the petrol, turning it into a fine mist that mixes easily with the incoming air. This better combustion process leads to improved power delivery and a smoother driving experience. Without functioning fuel injectors, the engine could run lean (too little fuel) or rich (too much fuel), resulting in rough idling, misfires, or even engine damage.

Maintaining the fuel injectors is a key part of keeping the Lexus IS running its best. Over time, fuel injectors can become clogged or dirty due to impurities and deposits that build up from fuel combustion. This reduces their ability to spray fuel accurately, leading to poor engine performance, increased fuel consumption, or difficulty starting the car. Many drivers notice symptoms like hesitation when accelerating, rough idling, or a drop in fuel efficiency when their injectors need attention.

Regular servicing of the fuel injectors on a 2021 Lexus IS is recommended to avoid these issues. Often, this can be done by using fuel system cleaning additives during servicing, which help dissolve deposits without needing to remove the injectors. However, in cases where injectors are heavily clogged or malfunctioning, professional cleaning or replacement might be necessary.

Here are a few pointers on looking after the fuel injectors in a 2021 Lexus IS:

  • Stick to high-quality fuel. Premium fuel often contains detergents that help keep injectors clean and prevent build-up.
  • Follow the manufacturer's servicing schedule. Lexus recommends periodic inspection and cleaning as part of routine maintenance.
  • Use fuel system cleaners. These additives can be a preventative measure to keep injectors clear. Just be sure to use ones that are compatible with your engine type.
  • Be alert to performance changes. Signals like hesitation, poor idle, or decreased fuel economy could mean the injectors need a check.
  • If problems persist, have a professional diagnose and possibly replace faulty injectors. Modern Lexus fuel injectors are precision components and require specialised handling and tools.

When it comes to replacing fuel injectors, it is important to select OEM (Original Equipment Manufacturer) parts or high-quality aftermarket alternatives. Using genuine fuel injectors ensures compatibility with the vehicle's engine control system, which maintains optimal fuel delivery and emissions control. Replacement isn't usually a task for the home mechanic unless you have the right tools and experience, as improper installation can cause leaks or engine issues.

In the 2021 Lexus IS, the fuel injectors contribute greatly to the car's reputation for refined performance and reliability. Taking care of these small but crucial components pays off in fuel savings, prolonged engine life, and preserved driving enjoyment. So, while they might be tucked away in the engine bay, the injectors deserve a bit of attention during servicing intervals. Keep an eye on your vehicle's performance, choose quality fuel, and follow your service schedule, and your 2021 Lexus IS will continue to deliver that smooth, responsive drive you expect.