Can this be used in ethylene and propylene ?

They say: "Mixes with all ethylene glycol based anti-freeze/coolants" I'd say that propylene is a no go. But to double check I'd take a run at the Gunk web site where the product information might be a little more extensive.

how much do you add to antifreeze?

I add the entire can. I try to put it directly into the radiator if possible, but it will eventually get there through the overflow tank also.

Can i mix this with the ford yellow antifreeze?

Most likely it shouldn't be an issue but to be honest the antifreeze available now is much better than what was available years ago and also lasts longer, when the antifreeze is good (correct dilution and no older than a few years old ) and changed regularly I have never seen any internal rust.

Can you use this in a Jeep Grand Cherokee ?

You can use in any cooling system. I put anti-rust in all my vehicles once a year and my radiators stay clean. I have been doing this for 35 years. $14.99 is not a good price for this product. It pays to shop around. There are plenty of companies that make anti-rust.

Radiator Specialty 11 Oz Anti Rust And Water Pump Lube

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 64.59

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Keep your engine cool, quiet, and corrosion-free — because your ride deserves the best!

TRUSTED LEGACY - Backed by 75+ years of innovation and reliability from a family-owned brand
PRECISION LUBRICATION - Protects and lubricates aluminum, metal parts, hoses, and seals to extend lifespan
SEAMLESS COMPATIBILITY - Mixes effortlessly with all ethylene glycol-based antifreeze and coolants
QUIET EFFICIENT OPERATION - Stops water pump squealing and keeps your engine running smoothly
ULTIMATE COOLING SYSTEM DEFENSE - Prevents rust, corrosion, and evaporation for peak engine performance

Gunk Radiator Specialty 11 Oz Anti-Rust & Water Pump Lube (C1012) is a high-performance lubricant designed to prevent rust, corrosion, and evaporation in cooling systems. Compatible with all ethylene glycol-based antifreeze, it lubricates and protects metal parts, hoses, and seals, ensuring quieter water pump operation and longer engine life. Manufactured in the USA by a trusted family-owned company with over 75 years of expertise.

Specifications

ASIN	B000ABG9T0
Best Sellers Rank	247,909 in Automotive ( See Top 100 in Automotive ) 282 in Car Engine Water Pumps
Brand	Gunk
Brand Name	Gunk
Container Type	Bottle
Customer Reviews	4.6 out of 5 stars 271 Reviews
Global Trade Identification Number	00078698310138
Item Form	Liquid
Item Weight	11 Ounces
Item weight	11 Ounces
Liquid Volume	11 Fluid Ounces
Liquid volume	11 Fluid Ounces
Manufacturer	Niteo Products
Material	Metal
Model Number	C1012
Number of Items	1
Package information	Bottle
Part Number	C1012
Recommended Uses For Product	Lube
Recommended uses for product	Lube
SAE J300 Viscosity Grade	0W
Specific Uses For Product	Prevent Corrosion, Protect against rust and scale, Lubricate water pump and thermostat
UPC	078698310138
Unit Count	325.31 millilitre
Viscosity	0w

Reviews

J**E

Stopped my water pump squealing

Seems to work well

20.12.2024

J**.

Quality Item.

Good price, does the job.

7.06.2026

B**S

Good

Work great

15.06.2026

J**.

A must for everyone who has a vehicle.

You need this to keep your antifreeze fresh. Good for your vehicles.

23.05.2026

C**N

Knowing that my car engine will perform better any time I added

Watched a video on “YouTube which recommended this brand, especially if you haven’t done a radiator flush in a while. Helps protect your water pump which needs lubrication to keep it working

15.05.2026

B**Y

Cleans and protects as expected

Excellent product when used as directed. Cleans and protects

9.05.2026

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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