Don't Use Steel Seal
I recently bought a 2003 Nissan Sentra GXE with the 1.8 engine for my daughter. The car has 109K miles, but is in perfect shape. After a few months I noticed that the car was using about 1 quart a week of antifreeze. I could not find any leaks, but after a while it began to blow white smoke out of the exhaust and I could smell antifreeze coming of the exhaust when it started up. Clearly I had either a blown head gasket or a cracked head. I called my mechanic it would be 14 hours labor (~$1000) to replace the head gasket + parts ($100-$200). He told me the much better choice would be to do an used engine swap, since the labor to do that was actually a little less at 13 hours. He found one from a crash test car that had 216 miles for $1300, which would bring the swap to around $2500 with misc. parts. He said it would be a really bad idea to do head gasket, since most of the time he has seen other damage to the piston rings. For $1300 more, to go to a nearly brand new engine was clearly the way I intended to go. I did some research on âSteel Sealâ. I was very skeptical, and was concerned it might cause other damage, but I thought Iâd give it a try since I intended to swap out the engine if it did not work anyway. I followed the instructions exactly, left it to cool down overnight. When I drove the car the next day, it appeared to do absolutely nothing to fix the car. The white smoke was not that bad, so I thought Iâd drive it a few days and see.
On the 2nd time I drove the car all of the sudden when all the way up on the temperature gauge and the car started running badly. This rise in the temp. had never happened before. I drove it a few and parked the car. After the car cooled down, I pulled the radiator cap. To my amazement, the radiator was completely plugged with a hard white polymer (note when I added the Steel Seal it was clean metal). Bottom line, now I need a new radiator too. DO NOT put this product in your car, you will be very sorry.