[PxTx]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr.Nickey Nova</div><div class="ubbcode-body">GM sells a product called (Cooling System Seal Tabs) part# 12378254. Used it in my 05 pickup when i had a little coolant leak, couldn't tell where it was coming from,possible head gasket. Worked like a charm and that was five years ago.It's made out of some kind of vegetable formula that seals minor leaks. You can get it at your local Chevrolet dealer, give it a try... </div></div>

Those tabs kept many a Cadillac HT4100 alive throughout the 1980's. Aluminum block and iron heads! Not sure there was a &quot;right fix&quot; for many of that engine's shortcomings other than using those tabs. My Dad was a Caddy mechanic for 30 years and I have seen more success than failures with them. I wouldn't be afraid of using 'em.