Kroil Original Penetrating Oil (Aerosol Spray-16.5oz Can-Single), Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts, Rust, Corrosion Inhibitor (KS162)

when i first found out about kroil i worked at a caterpillar in the 90'S ,dealership in virginia, the exhaust studs on a diesel motor were rusted to the point of breaking off along with a large array of different bolts and nuts, in the 2000's i worked for an envelope company for 25 years and the only spray for such a situation was kroil. been in my tool box sense 1984 and still impressed with it today. there is no other !!

I recently tackled replacing both exhaust manifolds on my 2012 F250 with a 6.2 gas engine – a job known known to turn into a nightmare as these manifolds are infamous for snapping bolts, and I was dreading it. In my decades of shade tree wrenching, I'd never used Kroil before, but after reading countless forum threads praising it, I figured it was worth a shot to avoid the extra hours (and headaches) that come with removing broken bolts. The results? Absolutely validating. I used the entire can for the job, making sure to thoroughly soak those bolts. Every single one came out without breaking. I couldn't believe it – a job I was sure would turn into a multi-day ordeal with broken bolts and extractors went smoothly because I took the time to let Kroil do its work. I'm now a true believer and advocate of Kroil. I'll never not have Kroil in my garage. In fact, I was so impressed that I bought the 17-ounce can to keep on hand for future jobs. The investment in a can of Kroil is nothing compared to the time and aggravation it can save you on a job like this. For anyone facing the rusted, ages, or seized fasteners, especially on exhaust manifold bolts, I'd say Kroil is absolutely worth having in your arsenal. It turned what could have been a nightmare into a straightforward repair.