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I have an 86 Dodge Aries 2.5 liter fuel injected.I have replaced rad and waterpump in the last 2 months.The engine runs fine,except it sucks about a half liter of coolant a week from the overflow.No coolant leaks,and after running at normal temp,you can notice a coolant smell in the engine compartment but no steam or fluid trail on the block..No visible coolant in oil or exhaust.If it is a block leak it is obviously very small,considering the amount of lost coolant.My question is: Do the retail block sealants work well enough to consider,or should I just leave it alone as I don't think there is any coolant contamination in the oil, and other then that the engine runs great.I only use the car as a winter beater,but it is a great little car,and I just replaced the K frame,so it is worth keeping around.Thanks for any info,as I have never used any of these block sealants,so I thought I would get some info from some of you who have.How have these products worked for you,and what brand do you recommend?Thanks in advance for your responses  

The only luck I ever had with one is KW Block Seal. I had a Grand AM that had a leaky head gasket and I used that and drove it 2 years.  

Johnswiftm wrote:

The only luck I ever had with one is KW Block Seal. I had a Grand AM that had a leaky head gasket and I used that and drove it 2 years. [/quot

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Hey I'm getting ready to use KW block myself on my 95 ford windstar...it was diagnosed by goodyear to have a blown head gasket. But I think the leak is small enough where this engine sealant stuff will work...ill let u know.