Read the fine print B4 you buy.
I had a ford ESP running consecutively with my factory powertrain warranty to 100,000 or 5 yrs. to cover everything that the factory would not....and neither warranty covered any of my repairs because it clearly says in both of the warranties in the exclusions, "Does not cover blockages or or issues caused by lack of maintenance", and then they told me that i should have changed my coolant at 30,000 and i would not have had these issues. my maintenance schedule says 100,000.
Now after i have spent about 5,000.00 on fixing the oil cooler and head studs and EGR delete and about 5 other things while i was in there, at the dealer, my service manager says i have a 90 day warranty on the "labor only" because i used aftermarket parts.
I told him that i did not think my warranty was worth the paper it was written on anyway, being that neither one fixed my issues before i elected to solve the big issue myself. My ESP from Easy Care expires in December so i really don't care. I was going to just buy another ESP to 200,000 or 6 more years and they wanted almost 7000.00, 4500 i think for just the engine trans.
This is just my opinion based on my personal experience with a 58,000 mi truck that i bought new at this dealer, where i have always had it serviced, and also got my other truck new back in 1999. The service manager is not my best friend but i have used him for 10 years, and i feel they do great work or i would not have let them fix it. The way my truck is running now, i think it was better money spent that an ESP, should have done it long ago.