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

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

Product ID: 389076945

Details

Brand
Chevron
Contains Liquid Contents
Yes
Item Form
Liquid
Item Volume
20 Fluid
Material Feature
Unscented
Net Quantity
591.47

⛽Cleans entire fuel system

⚙️Restores cetane boost & combustion

🛠️Prevents injector sticking & failure

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VT38646

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⛽ Drive cleaner, drive smarter — don’t let diesel deposits slow you down!

DEEP FUEL SYSTEM DETOX - Powerful patented formula cleans deposits from tank to injectors for peak engine health.
ROUTINE PROTECTION RITUAL - Use every 3,000 miles or at oil changes to prevent costly injector failures and maintain engine longevity.
ENGINE RESPONSIVENESS REVIVED - Experience smoother acceleration and quieter operation with restored drivability.
UNIVERSAL DIESEL COMPATIBILITY - Safe for all diesel types including ultra-low sulfur, biodiesel, and blends.
CETANE BOOST FOR PEAK PERFORMANCE - Restores cetane levels to improve combustion, reduce emissions, and enhance cold starts.

Chevron Techron D Concentrate is a 20 oz. ultra-high performance diesel fuel system cleaner designed to remove deposits throughout the fuel system, restore cetane boost for improved combustion, and prevent injector sticking. Compatible with all diesel fuels including biodiesel blends, it supports engine responsiveness and reduces emissions. Recommended for use every 3,000 miles, this concentrated formula treats up to 35 gallons of diesel fuel, ensuring long-term engine protection and enhanced drivability.

Specifications

ASIN	B074JMSM96
Best Sellers Rank	#71,701 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #78 in Diesel Additives
Brand	Chevron
Brand Name	Chevron
Contains Liquid Contents?	Yes
Country of Origin	USA
Customer Reviews	4.7 out of 5 stars 255 Reviews
Global Trade Identification Number	00023968377199
Included Components	20 oz Bottle Techron D Concentrate
Item Form	Liquid
Item Type Name	Techron D Concentrate Diesel Fuel System Cleaner, 20 oz
Item Volume	20 Fluid Ounces
Manufacturer	Techron
Material Feature	Unscented
Material Features	Unscented
Number of Items	1
Scent	Unscented
Special Features	Concentrated
Specific Uses For Product	Engine
UPC	023968377199
Unit Count	591.47 Milliliters

Reviews

C**R

Has PEA which is proven to work

19.01.2026

L**L

A must for Diesels

2.01.2026

P**S

It worked for me

8.01.2026

S**8

Your diesel truck will thank you

16.10.2025

D**Y

Dilevered as expected.

6.11.2025

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