Sealed Quart SLICK 50 Engine Wear Oil Protector - $5 (Clay)

Sealed Quart SLICK 50 Engine Wear Oil Protector 1

condition: new

make / manufacturer: Slick 50

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Sealed quart bottle of Slick 50 Automotive Engine Wear Protector/ oil treatment. The bottle and box have been on the garage shelf for several years but the inner bottle neck seal was never opened. Some users swear by this product for car engines and small engines to protect from wear and help high mileage engines. These are $25 plus tax in many stores. Only $5 here.

If you see this posting, the item is still available. Please provide your phone number if interested.

post id: 7913733304

posted: 2026-02-07 16:08

updated: 2026-02-26 22:19

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Sealed Quart SLICK 50 Engine Wear Oil Protector - general for sale -...

Sealed quart bottle of Slick 50 Automotive Engine Wear Protector/ oil treatment. The bottle and box have been on the garage shelf for several years but the inner bottle neck seal was never opened....