Seafoam
#1
#2
I only use it in the gasoline tank in all my vehicles. I've read, in the auto forums, where folks have had success and failure.
The worse I've read is where old oil is loosened (which has acted as a sealant along gasket areas) where the side effect is an oil leak.
But maybe that is a good thing, as you have now found a potential gasket failure
The worse I've read is where old oil is loosened (which has acted as a sealant along gasket areas) where the side effect is an oil leak.
But maybe that is a good thing, as you have now found a potential gasket failure
#6
I used too, not anymore though. It does a very good job of thinning your oil and an even better job of cleaning to the engine's detriment (I believe). I had one engine blow a headgasket within 100 miles of adding Seafoam to the crankcase and another one blow an upper intake manifold gasket within about 500 miles. Coincidence maybe, but that was enough for me. I keep the Seafoam to the fuel and run clean oil in my crankcase.