Pencool 2000 anywhere – Pierce-Arrow Society

Tagged: Coolant corrosion

This topic has 5 replies, 4 voices, and was last updated 33 minutes ago by
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June 2, 2025 at 6:34 pm #481007

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After the discussions a few years back that pencool 2000 is the bestus stuff to add to water only radiators I cannot find it anywhere. Any sources or equivalent substitutes out there?

June 2, 2025 at 7:16 pm #481008

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Jim,

I contacted PerRay that used to make Pencool and they no longer make it. Right now I am using No-Rosion. NAPA also has a Water Pump Lubricant / Anti Rust available. I haven’t heard good or bad about either. NoRosion specifically gives a dosage for straight water. https://www.norosion.com/norosioncoolant.htm

LubeGard has a diesel truck anti-corrosive additive, but does not mention use with water only. More research is required.

Dave

June 3, 2025 at 11:58 am #481009

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I have been using Napa Kool. (https://www.napaonline.com/en/p/FIL4056)

Robert

June 4, 2025 at 8:15 am #481011

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Thanks Dave for tracking pencool status down and Robert’s NAPA Kool suggestion.

June 4, 2025 at 8:55 am #481012

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Jim,

One other thing you might consider to prevent cooling system corrosion is running with a zinc or magnesium anode in the cooling system. Many people hang them in the radiator neck. There are some made that will thread into the block or radiator drain hole. Magnesium works best in fresh water, but Zinc will also work.

https://www.rotometals.com/flex-a-lite-radiator-anode-incl-brass-plug-w-zinc-anode-32060-1-4-npt-x-1-3-4/?gad_source=1&gad_campaignid=234348023&gclid=CjwKCAjw3f_BBhAPEiwAaA3K5KoGoMI39_OF6IrW4P8drNOyID3YUIHUl1-tC224X6DiBE2BeQbnShoCVcwQAvD_BwE

Dave

June 6, 2025 at 9:24 am #481014

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This place advertises Pencool 2000 and has it on sale. To get the sale price, you need the whole long link. to just see it you can use the short link at the bottom. Or you can just go to finditparts.com and search for Pencool 2000.

https://www.finditparts.com/products/7921548/penray-200016?srcid=CHL01SCL010-Npla-Dmdt-Gusa-Svbr-Mmuu-K7921548-L1611&pv2=eyJhbGciOiJFUzI1NiIsInR5cCI6IkpXVCJ9.eyJjIjoiVVNEIiwiZXhwIjoxNzQ5MjMwMzQwLCJtIjoiNjc2Njc1NiIsIm8iOiI3OTIxNTQ4IiwicCI6OS41ODk5OTk5OTk5OTk5OTk5fQ.PSDr4C44RuOa6Apubl3YkfVzrKNk3N1Y_b1zNc3ahbJkc0yI-3g3Phrg6wABhkGpKNcQyOG9hp5AYO9RoBqQgg&srcid=CHL01SCL010&utm_medium=cpc&utm_source=google&utm_marketing_tactic=broad&utm_paid_search_intent=vendor-brand&utm_campaign_id=21341868715&utm_ad_group_id=&utm_ad_id=&utm_platform=x&utm_placement=&utm_keyword=&utm_target_id=&utm_match_type=&utm_feed_item_id={feed_item_id}&utm_extension_id={extension_id}&utm_location_interst=&utm_location_physical=9031020&utm_product_id=7921548&gad_source=1&gad_campaignid=21331715424&gclid=CjwKCAjwo4rCBhAbEiwAxhJlCfm87AzrJ17eIyswbdkCJvX5ZcILFFojVPrntj9LXZ099thtxoUD9BoCS7oQAvD_BwE

https://www.finditparts.com/products/7921548/penray-200016
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