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 Injection Cleaner, 12 oz., Pack of 6

Product ID: 19560773

Details

Brand
Chevron
Item Form
Liquid
Scent
Unscented
Specific Uses For Product
Automotive Top
Material Feature
Unscented

⛽Restores fuel economy fast

🚗Works in one tankful while driving

❄️Fights gas line freeze with water removal

Description

⛽ Clean fuel, cleaner drive—don’t let deposits slow you down!

DRIVE CLEAN - Cleans fuel injectors in just one tankful—no downtime needed.
FREEZE FIGHTER - Protects your engine by removing water to prevent gas line freeze.
ENGINE SAFE FORMULA - Gentle on catalytic converters and oxygen sensors for worry-free use.
TRUSTED PERFORMANCE - Chevron’s proven tech keeps your engine running smooth and efficient.
FUEL ECONOMY REVIVAL - Boost your MPG and save at the pump with every drive.

Chevron Techron Fuel Injector Cleaner is a 12 oz treatment designed for spark ignition engines to clean fuel injectors and carburetors in a single tankful. It restores lost fuel economy, removes water to prevent gas line freeze, and is safe for catalytic converters and oxygen sensors, ensuring optimal engine performance and efficiency.

Specifications

ASIN	B0097SDUTY
Best Sellers Rank	#83,798 in Automotive ( See Top 100 in Automotive ) #91 in Fuel System Cleaners
Brand	Chevron
Customer Reviews	4.5 4.5 out of 5 stars (1,848)
Date First Available	September 8, 2012
Item Weight	5.1 pounds
Item model number	10055-CASE
Manufacturer	Chevron
Manufacturer Part Number	10055-CASE
Model	10055-CASE
Product Dimensions	10 x 8.75 x 6.75 inches

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