Does a 2002 Ford F-350 with a 7.3 liter Powerstroke have an aluminum radiator? Is this safe to use in a diesel system?

Most radiators today are made of aluminum and plastic. Permatex 80030 is a strong acid cleaner. Suggest you not use it in a aluminum radiator.

Is it okay to use on a 1966 Chevy Caprice radiator original

Yes. All radiators made during the 60's and into the 70's were made out of brass and copper. I have used Permatex 80030 in my all original 1970 Chevelle.

does this product remove scale on top of tubes

What's Up John C!My appologies, but unfortunately, I never got a chance to use the product because it was rated to be unsafe to use on aluminum radiators and motors...with that said, I imagine it should be able to remove scale on the top of tubes(especially since, the acidity is capable of wearing away aluminum). I know this doesn't 'quite' answer your question, but that's my take. Again, I Appologize for not being more useful. Good Luck! ;)

How do you know if you have a aluminum radiator? I have a 2002 Old Alero that runs hot up hills.

yes you do have an aluminum radiator in that car. drain all coolant from vehicle. fill with water add a quarter cup of radiator cleaner. and run for 15 to 20 minutes. drain and repeat if necessary. flush radiator with water. and refill with 50:50 mixture of antifreeze

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Permatex 80030 Heavy Duty Radiator Cleaner, 1 Quart

Permatex 80030 Heavy Duty Radiator Cleaner, 1 Quart

Product ID: 6911705

Details

Brand
Permatex
Item Form
Liquid
Material Feature
Heavy Duty
Scent
Unscented
Specific Uses For Product
Engine

🔥Powerful engine & radiator cleaning

⚙️Heavy-duty rust & scale removal

🛠️Versatile industrial maintenance use

Description

⚡ Clean smarter, drive cooler — don’t let rust slow you down!

NON ALUMINUM SAFE USE - Formulated for steel and iron radiators—know your radiator, avoid aluminum mishaps.
RUST SCALE ERADICATOR - Effortlessly removes stubborn rust and scale buildup for peak engine performance.
PRECISION CLEANING POWER - Specifically designed to clean stream coils and broiler tubes without damaging components.
INDUSTRIAL STRENGTH FORMULA - Trusted for heavy-duty applications beyond automotive, including industrial maintenance.
ENGINE RADIATOR REVITALIZER - Restores optimal cooling efficiency by unclogging radiators and water jackets.

Permatex 80030 Heavy Duty Radiator Cleaner is a powerful 1-quart solution engineered to remove rust and scale from automotive engines, radiators, and water jackets. Ideal for heavy-duty and industrial maintenance, it effectively cleans and unclogs stream coils and broiler tubes, enhancing cooling system efficiency. Note: Not suitable for aluminum radiators.

Specifications

ASIN	B000HBGHPY
Brand Name	Permatex
Customer Reviews	4.2 4.2 out of 5 stars (43)
Item Form	Liquid
Item Volume	1 quarts
Item Weight	2.3 pounds
Manufacturer	Permatex
Material Features	Heavy Duty, Scented, Unscented
Model Number	80030
Number of Items	1
Part Number	80030
Scent	Unscented
Size	1 Quart (32 Ounces)
Specific Uses For Product	Engine
Surface Recommendation	Metal, Plastic
UPC	079340800304

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