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 65740 Techron Concentrate Plus Fuel System Cleaner - 20 oz.

Chevron 65740 Techron Concentrate Plus Fuel System Cleaner - 20 oz.

Product ID: 790004750

Details

Brand
Chevron
Contains Liquid Contents
Yes
Global Trade Identification Number
Item Form
Liquid
Item Volume
20 Fluid
Item Weight
1 Pounds

🚗Improves engine smoothness & power

⚙️Molecular-level deposit removal

🛢️20 oz concentrated formula

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KD 24.38

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Description

⚡ Unlock your engine’s hidden power with Chevron Techron!

MADE IN THE USA - Premium quality assurance from a trusted American brand, Chevron.
TRUSTED BY THOUSANDS - Backed by 8,000+ reviews with a strong 4.6-star rating, proving real-world effectiveness.
CONCENTRATED POWER BOOST - 20 oz of potent formula designed to maximize fuel system efficiency with every use.
SMOOTHER ENGINE EXPERIENCE - Reduces rough idling and delivers instant power surges for a refined drive.
MOLECULAR PRECISION CLEANING - Targets and softens stubborn engine deposits at the molecular level for peak performance.

Chevron 65740 Techron Concentrate Plus is a 20 oz concentrated fuel system cleaner that works at the molecular level to dissolve and suspend engine deposits, improving engine smoothness, reducing rough idling, and enhancing power delivery. Trusted by thousands with a 4.6-star rating, this premium USA-made additive is a must-have for maintaining optimal vehicle performance.

Specifications

ASIN	B00092893E
Best Sellers Rank	#167,201 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #121 in Petrol Additives
Brand	Chevron
Brand Name	Chevron
Contains Liquid Contents?	Yes
Country of Origin	USA
Customer Reviews	4.6 out of 5 stars 8,228 Reviews
Global Trade Identification Number	06007795111540
Item Form	Liquid
Item Volume	20 Fluid Ounces
Item Weight	454 g
Model Number	65740
Net Quantity	566.7 Grams
Part Number	65740
Special Feature	Concentrated
Special Features	Concentrated
UPC	023968657406
Unit Count	566.7 Grams

Reviews

K**G

2.08.2022

V**M

4.02.2026

I**N

15.04.2026

ا**ن

21.11.2023

J**M

10.03.2026

D**.

8.10.2025

Z**O

2.10.2025

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