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Return Policy

100% money back guarantee! If you are not completely satisfied with Promech Professional Mechanics Formula Penetrating Oil for any reason, simply return the unused portion (shipping pre paid) for a full refund. Refunds will be issued as a credit to card used for original purchase.

Send All Returns To:

Returns - Promech Oil Corp.
2984 W. Wadsworth Rd, Building C
Waukegan, IL 60087


"We were using ** ******* for any rusted or seized parts on customers cars. Thought it worked fairly well. Until the customers started complaining about the foul smell. Had one bring it back to the shop and demand that we “unstink” their car. Then we tried Promech, not only does it not have a bad odor, it actually works much better, and a lot faster! Send us some as soon as you can."

Tom W. - Auto Technician
Winthrop Harbor, IL

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