Is there any reason why after using this that I should also use Chevron's fuel injector cleaner or does this do the same thing?

The fuel injector cleaner is for use every 1,000 miles after the initial use of the complete system cleaner when doing an oil change. My Kia recommends using Chevron system cleaner at every oil change, and I'm also going to put the fuel injector cleaner every 1,000 miles after the oil change. You don't put, both in at the same time.

I found an old unopened bottle of the original concentrate, not the Plus. Probably 10 years old. Is it still OK to use.

Yes, its fine to use. The ingredients don't go bad for maybe 20 plus years or more

it's a real pain to open Techron bottle's seal. do you guys have any tips on opening it easily?

I punch the seal with the end of a closed pocket knife. Makes a large enough opening. You don’t need to peel off the foil seal.

How is this different than the older techron "fuel system cleaner," that also is supposed to clean injectors?

pro guard is not as concentrated as the full strenth black bottle that i have used for years at my repair, with the new fuel injection systems that have come out the last few years,They have carbon built up problems on the valves.I would only use the full strench in my cars every oil services

Chevron Techron High Mileage Fuel System Cleaner 12 Oz Pack

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Description

⛽ Keep your engine young, no matter the miles!

HIGH MILEAGE HERO - Specifically formulated for vehicles over 75,000 miles to combat age-related carbon buildup.
FUEL ECONOMY MAXIMIZER - Keeps your engine running lean and clean, saving you money at the pump.
CORROSION DEFENSE SYSTEM - Advanced inhibitors shield iron, steel, copper, and silver components from rust and wear.
ETHANOL BLEND COMPATIBLE - Safe and effective with all ethanol fuel blends, including E10 and E85, without harming sensors.
POWER BOOST IN EVERY DROP - Removes gum, varnish, and deposits to restore engine power and smoothness.

Chevron Techron High Mileage Fuel System Cleaner is a premium 12 oz formula designed to clean and protect fuel systems in vehicles with over 75,000 miles. It removes deposits that reduce power and fuel efficiency, protects against corrosion on multiple metal types, and is fully compatible with ethanol blends. Ideal for gasoline-powered cars, trucks, and SUVs, it ensures sustained engine performance and longevity.

Specifications

ASIN	B086FFK5H3
Best Sellers Rank	#20,694 in Automotive ( See Top 100 in Automotive ) #48 in Automotive Fuel System Cleaners
Brand	Chevron
Customer Reviews	4.7 4.7 out of 5 stars (1,767)
Date First Available	13 August 2020
Item Weight	2.38 Kilograms
Item model number	266711163-6PK
Manufacturer	Chevron
Manufacturer Part Number	266711163-6PK
Model	Techron High Mileage Fuel System Cleaner
Product Dimensions	8.02 x 6.77 x 22.6 cm; 2.38 kg

Reviews

J**Z

Que sea un artículo que cumpla con controles de calidad.

Hola Buenos días, en lo particular este producto es de buena calidad y si creo que cumple con las necesidades.

29.01.2026

م**ا

ممتاز

انا فخور جدا بالمنتج اصلي ١٠٠%

23.05.2026

A**N

Great Cleaner That Helps High Mileage Cars Run Smoothly

The Chevron Techron High Mileage Fuel System Cleaner works exactly as advertised. After using it, my engine runs smoother and idles more quietly, and I’ve noticed better acceleration and fuel efficiency. It’s easy to use—just pour it into the gas tank—and one bottle goes a long way. Perfect for keeping older vehicles in good shape. A solid product I’ll keep using regularly. 🚗⛽✨

4.10.2025

D**I

Very fast delivery

Fast delivery and all good.

16.05.2026

M**L

Excelente

funciona perfectamente, limpia y devuelve la potencia al motor.

16.09.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 224.61

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered 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 Ireland.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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1 month ago

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Chevron Techron High Mileage Fuel System Cleaner, 12 oz, Pack of 6

Description

Specifications

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Common Questions