Folks,

I'm posting this in the diesel section because we seem to be the hardcore folks keeping their cars running 200-300-400+Kmiles. It is inspiried by the general overheating general topic just posted. So there seem to be a bunch of A/C problems posted recently as well.

My question is should there be some planned A/C maintenance to prevent or delay the replacement of major components? Should there be a planned flush, oil drain, and refill at a certain mileage? Would this prevent compressor failures? Should O-rings be replaced by time or mileage?

Let me know your thoughts. Maybe a collection of experiences by compressor type and area of the country might show some trends. Southern A/c systems need attention at 100K,.. Northern systems need o-rings early, who knows... any suggestions or thoughts? Just run 'em till they drop?

Thanks,
Chuck