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It seems to me , I have heard of a significant increase in the number of cases of leaking head gaskets .
Seems that this was not that common back in the ” good old days ” ?
It also seems that this is often associated with engine overheating . So , is it actually an increase in cases of overheating ?
Is it also related to the increase use of aluminum for heads and / or blocks ?
Thanks ,
Wyr
God bless
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Most likely a combination of those and the fact that it is not uncommon to hear of it occurring after 100 to 125,000 miles and where these vehicles are going well pass 200,000 miles
In the ” good old days ” 100,00 miles was considered extremely high mileage for a vehicle.Very true , I used to consider a 100,000 mile engine well worn .
My late Dad used to try to trade at some where between 60,000 – 75,000 miles .
We lost our 1996 Chevy Lumina to a bad transmission , not a bad engine . Transmission rebuild would have cost more than the car was worth . This was at 160,000 + miles .
God bless
WyrVery few headgaskets on modern cars randomly fail and over a decent sized sample you’ll usually see the pattern to any straight failure. So a particular engine from a particular manufacturer will have issues while other’s won’t.
Outside of the few cars where it is a common issue, it’s almost always a result of overheating. Since some time in the mid-late 90s manufacturers have all been using multi-layer metal head gaskets that aren’t as prone to failure as the older style composite, I think they were graphite based, designs were.
For sure the occurrence of warping due to overheating is in correlation with the materials being used. Aluminium is soft and simply won’t handle extreme temperatures.
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