I back it! Ford told us 6k to do the head gasket and the truck blew out white smoke like crazy. I literally left the dealership and went up one block to O’Reillys and bought k seal as a last resort. I mixed half the bottle into a new bottle of antifreeze. Poured into the reservoir of my 06 f-450 6.0 and I was in awe, the smoking stopped by the time I was half way to my yard. The next day my reservoir was still full and there was absolutely no more smoking😁

I have used it and worked on 4liter cracked cylinder head...was amazed..

When I did I drop a few tabs of acid?? 😂

Why is this in like 3d

Hope it buys you some time. Subbed to see results

You gotta holler K-SEAL real loud so the coolant Gods hear you properly.

How do you do sir.

BIG RED!!!!……………sorry…..couldn’t help myself…….

My head gasket is leaking coolant into the oil. Do you beleive kseal would help me? If so which one ie pour and go or ultimate?

Came here cuz my 5.4 started leaking 😂 funny part is I only searched k seal

So I had a coolant leak, i got K-Seal, and it stopped the leak, so my coolant no longer leaks. BUT, my car still overheats. Why?

Hi did it worked?