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.

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Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz. (Pack of 6)

Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz. (Pack of 6)

Product ID: 6648921

Details

Brand
Chevron
Item Form
Liquid
Material Feature
Scented
Scent
Fresh
Specific Uses For Product
Car Fuel

⚡Restores lost power & acceleration

⛽Cleans entire fuel system

🛡️Protects engine components long-term

Details

Brand
Chevron
Item Form
Liquid
Material Feature
Scented

Description

⛽⚡ Unlock your engine’s hidden potential — drive cleaner, drive stronger!

COLD START CONFIDENCE - Improves cold start reliability and fuel stability for up to 12 months
ENGINE SMOOTHNESS UPGRADE - Reduces rough idle, hesitation, and spark plug fouling for consistent performance
COMPLETE FUEL SYSTEM DETOX - Eliminates deposits from injectors, carburetors, valves & combustion chambers in just one tank
POWER EFFICIENCY REVIVAL - Restores up to 100% lost power, acceleration, and fuel economy for a smoother drive
VERSATILE MULTI VEHICLE USE - Perfect for cars, trucks, motorcycles, boats, and more — use every 3,000 miles or at oil change

Chevron Techron Concentrate Plus is a premium 12 oz fuel system cleaner designed to deep-clean and protect your entire fuel system. It effectively removes deposits from fuel injectors, carburetors, intake valves, and combustion chambers, restoring lost power, acceleration, and fuel economy. Regular use every 3,000 miles improves engine smoothness, reduces rough idling and hesitation, and enhances cold start performance. Trusted by millions, it’s the #1 fuel system cleaner that keeps your vehicle running at peak efficiency across cars, trucks, motorcycles, and more.

Specifications

ASIN	B00092893O
Best Sellers Rank	#1,170 in Automotive ( See Top 100 in Automotive ) #9 in Fuel System Cleaners
Brand	Chevron
Brand Name	Chevron
Contains Liquid Contents?	Yes
Customer Reviews	4.6 out of 5 stars 16,748 Reviews
Global Trade Identification Number	00023968003098
Included Components	complete fuel additive
Item Form	Liquid
Item Type Name	Fuel System Cleaner
Item Volume	12 Fluid Ounces
Item Weight	75.1 Ounces
Manufacturer	Chevron
Material Feature	Scented
Material Features	Scented
Model Number	67740-6PK
Number of Items	6
Part Number	67740-CASE
Scent	Fresh
Size	12 Fl Oz (Pack of 6)
Special Features	Concentrated
Specific Uses For Product	Car Fuel System
UPC	023968003098
Unit Count	72.0 Fluid Ounces
Warranty Description	Limited Warranty

Reviews

M**Y

30.06.2025

I**N

15.04.2026

D**E

17.04.2026

A**R

13.04.2026

V**T

8.04.2026

D**O

24.04.2026

D**N

19.03.2026

J**P

14.04.2026

V**H

9.10.2025

A**I

23.04.2026

K**G

2.08.2022

A**R

25.08.2022

A**R

23.10.2025

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