simple always read the label ... 2 oz / 15 gallons. when you fill up add 2 oz / 15 gallon before you pump. Don't worry about being exact in this case more is good and for car size tanks i don't think it matters whether you add before or after pumping. I'm not a representative of Polytron, this how i use it. I'm always leary of these type of products but i think this is the real deal. I notice improvements immediately after i added Polytron GDFC to my fuel: smoother running, better take offs and better MPG however the first time i added GDFC I am using it instead of Stanadyne OEM additive for lubricity since the fed's saw fit so remove sulfur(extreme pressure agent) from diesel. Similar immediately noticeable results from oil additive.

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Fuel Conditioner

Q: There is no mention of it being safe for cat converters, etc.

This product is safe to be used on any of the following equipment:Automatic and manual transmissions for passenger cars, trucks, Sport Utility vehicles, construction equipment, railroad, marine vessels and military.Diesel EnginesDifferentials and gear boxes.Bearings and bearing journals.Power steering units & PumpsAir compressorsCooling systemsHydraulic power systems in Heavy duty off road equipment and Farming machineryMining and smelter equipmentRailroad equipmentOil and Water wellsDrilling equipmentMachine shops equipment: grinding, drilling milling etc.

4.4/5

Product ID: 362153490

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Frequently Bought Together

Polytron Gasoline Diesel Fuel Conditioner (GDFC) 12oz (354ml) Bottle - Military Industrial Grade

Polytron Metal Treatment Concentrate Oil Additive (MTC) 1/2 Qt (16oz/473ml) Bottle - Military Industrial Grade

Description

Fuel Conditioner

Specifications

Manufacturer	Polytron
Brand	Polytron
Item Weight	11.8 ounces
Product Dimensions	1.3 x 3.25 x 8.5 inches
Item model number	fuel
Is Discontinued By Manufacturer	No
Manufacturer Part Number	Polytron GDFC 12oz
Voltage	12 Volts

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There is no mention of it being safe for cat converters, etc.

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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Fantastic and great service. Shipping was faster than expected.

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Very impressed with the quality and fast delivery. Will shop here again.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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