Chevron Techron, Pro-Gard, and Gas concentrations - Nissan Forum
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post #1 of 1 Old Dec 8th, 2004, 02:46 PM Thread Starter
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Chevron Techron, Pro-Gard, and Gas concentrations

I bought a case of the Techron Pro-Gard Fuel Injector Cleaner from Costco (4 x 16oz bottles for $10), but quickly realized that it wasn't the Techron Concentrate. On the bobistheoilguy forum, Ryan00TJ forwards some info that was received from Chevron Fuels Technical Service:

Thank you for your inquiry. It has been forwarded to us here at Chevron
Fuels Technical Service.

The ProGard and Techron products contain the same chemical additive.
There is but one grade of the Techron product, while there are four
grades of Pro-Gard. The Pro-Gard products are "Clean-up", "Fuel Injector
Cleaner", "Fuel Injector Plus Intake Valve Cleaner", and "Gas

The ProGard products give lower, less effective concentrations. These
lower-concentration packages often sell for less. They have less "keep
clean" and "cleanup" properties. They are also not concentrated enough
to clean combustion chamber deposits. There are only subtle differences
amongst the Pro-Gard products, mostly having to do with concentration.

Techron Concentrate Fuel System Cleaner is the most concentrated and
will clean combustion chamber deposits. There is approximately 100% more
active ingredient in the Techron Concentrate than the Pro-Gard Fuel
Injector Cleaner. The active ingredient is Poly Ether Amine with a
solvent carrier.

A bottle of Techron Concentrate Fuel System Cleaner, when added to
gasoline according to the label instructions, results in an additive
concentration roughly 10 times stronger than the dose in Chevron

If you always used Chevron gasolines, you should be getting enough of a
dose of Techron such that you should not have to purchase the
I called the Chevron customer support line, but they weren't much help. After being forwarded to a Lube Tech Engineer, he told me that he couldn't confirm or deny the formulation concentrations, and I should follow the manufacturers recommendation. However, from the known concentrations that were sent from the Chevron's Fuel Technical Service, this is what I've gathered:

1.) Techron Concentrate contains the highest available active ingredient, which is a Poly Ether Amine with a solvent carrier. Safe for use every 3,000mi

2.) Pro-Gard Fuel Injector Cleaner contains ½ as much Techron as the Concentrate. Safe for use every 1,000mi

3.) Chevron Gasoline (87, 89,91) contains 1/5-1/10 as much techron as the Pro-Gard FI Cleaner and Techron Concentrate, respectively. Safe for use every Fill Up.

Based on those concentrations and local costs, I think the Pro-Gard FI cleaner ends up costing less when comparing it to the Techron Concentrate product (If you buy from Costco). By doubling the dosage of Pro-Gard, you're essentially adding 1 bottle of Techron Concentrate. This will cost $5 (2 bottles of Pro-Gard @ $2.50 equals 1 bottle of Techron Concentrate) and will treat 16g of gas. If we adjust the volumes to reflect Techron Concentrate commercially available volumes, then the 12oz equivalent Techron Concentrate costs $3.75 and 20oz Techron Concentrate equivalent costs $6.25.

If you want to add Techron in non-Chevron gasoline, then you can add use 1oz Pro-Gard FI cleaner for every 5g gasoline to blend the Techron additive into non-Chevron gas. This comes out to an extra $0.03 per gallon ($2.50/16oz x 1oz/5g gasoline). You can also use 1oz Techron Concentrate per 10g gasoline, but it costs $0.05 per gallon, assuming you pay $10 for 20oz. I probably wouldn't recommend this course of action because there may be a shelf life to how long the active ingredients last after being opened. Also, the Techron additive may mix with other additive compounds from other gas additives making a new additive that may be cause deposits. Lastly, Chevron gas usually doesn't cost more than $.05 per gallon compared to non-Chevron gas, so you're probably better off getting Techron at the pump instead of measuring "x" amount of Techron concentrate to add to the gas tank.

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