My cousin gave me Techron Diesel and on its bottle neck is 19079. Is it made in 2019?

Doesn't really matter as this stuff is stable over long periods of time. FUEL is what you have to worry about aging out.

Does this also help clean out the exhaust system? such as the egr valve and dpf

No, it’s for fuel injectors and fuel lines clog cleaning

Emulsifier or demulsifier?

My best non professional answer is an emulsifier.

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Chevron Techron D Concentrate Diesel Fuel System Cleaner, 20 oz., Pack of 1

Chevron Techron D Concentrate Diesel Fuel System Cleaner, 20 oz., Pack of 1

Product ID: 68460321

Details

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

⛽Cleans entire fuel system

⚙️Restores cetane boost for better combustion

❄️Improves cold starting performance

€ 47.68

Duties & taxes included

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⛽ Drive cleaner, start stronger, and stay ahead of the pack!

COLD START CONFIDENCE - Improves engine responsiveness and drivability even in the chilliest conditions—never miss a beat.
UNIVERSAL DIESEL COMPATIBILITY - Safe for all diesel types including ultra-low sulfur, biodiesel, and blends—versatility that fits your lifestyle.
INJECTOR PROTECTION LONGEVITY - Prevents fuel injector sticking and failure with regular use, saving costly repairs down the road.
ULTRA EFFECTIVE DEPOSIT CLEANER - Powerful patented formula cleans pre-existing and new diesel injector deposits for peak engine health.
CETANE BOOST FOR PEAK COMBUSTION - Restores cetane levels to enhance fuel burn efficiency, reducing emissions and improving power delivery.

Chevron Techron D Concentrate is a 20 oz. ultra-high performance diesel fuel system cleaner designed to remove deposits, restore cetane boost, and improve cold starts. Compatible with all diesel fuels including biodiesel blends, it protects injectors and enhances engine responsiveness. One bottle treats up to 35 gallons and is recommended every 3,000 miles or at every oil change for optimal engine health.

Specifications

ASIN	B074JMSM96
Best Sellers Rank	#20,670 in Automotive ( See Top 100 in Automotive ) #45 in Diesel Additives
Brand Name	Chevron
Customer Reviews	4.7 4.7 out of 5 stars (377)
Global Trade Identification Number	00023968377199
Included Components	complete diesel fuel additive
Item Form	Liquid
Item Type Name	Fuel System Cleaner
Item Volume	20 fluid ounces
Manufacturer	Chevron
Material Features	Unscented
Model Number	266373272
Number of Items	1
Part Number	266373272
Scent	Unscented
Size	20 Fl Oz (Pack of 1)
Special Features	Concentrated
Specific Uses For Product	Engine
UPC	023968377199
Unit Count	20 Fluid Ounces
Warranty Description	Limited Warranty

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TrustScore 4.5 | 7,300+ reviews

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€ 47.68

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews