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

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Chevron Techron Fuel Injector Cleaner, 350ml

Chevron Techron Fuel Injector Cleaner, 350ml

Product ID: 720751943

Details

Brand
Chevron
Item form
Liquid
Scent
Unscented
Specific uses for product
Automotive Top
Material features
Unscented

⚡Restores lost power & acceleration

⛽Cleans entire fuel system

🛡️Protects fuel system up to 1 year

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₩123507

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Description

⛽⚡ Unlock your engine’s hidden potential—clean, protect, perform!

SMOOTH RIDE GUARANTEED - Reduces rough idle, engine surge, hesitation, and spark plug fouling for flawless starts
LONG LASTING PROTECTION - Keeps fuel stable and system protected for up to 12 months—drive worry-free
COMPLETE FUEL SYSTEM DETOX - Targets injectors, carburetors, valves & chambers for peak engine health
POWER EFFICIENCY REVIVAL - Restores lost horsepower, acceleration, and fuel economy to keep you ahead
TRUSTED BY PROS ENTHUSIASTS - Highly rated with 4.5 stars and proven results on modern engines

Chevron Techron Fuel Injection Cleaner is a professional-grade additive designed to clean and protect the entire fuel system, including injectors, carburetors, intake valves, and combustion chambers. It restores lost power, improves fuel economy, reduces engine roughness, and enhances cold start performance. Safe for use every 1,000 miles, it stabilizes fuel and protects your engine for up to one year, making it a must-have for maintaining peak vehicle performance.

Specifications

ASIN	B0097SBAPK
Best Sellers Rank	#71,998 in Automotive ( See Top 100 in Automotive )
Brand	Chevron
Customer Reviews	4.5 4.5 out of 5 stars (1,339)
Date First Available	10 February 2026
Item Weight	299 g
Item model number	10055
Manufacturer	Chevron
Manufacturer Part Number	10055
Model	10055
Package Dimensions	23.39 x 7.75 x 6.38 cm; 299.37 g
Voltage	12 Volts

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TrustScore 4.5 | 7,300+ reviews

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