I just replaced a 5.5 year-old Delco battery in one of my cars. It
gave me plenty of warning that it was weakening. I've had other
batteries fail all at once. I can't complain about Delco but I put in
an Interstate battery as replacement.
OEM tires: bad to awful seems to be range for most cars. Replacement
tire costs factor into my car buying decisions.
Delco hasn't made batteries in years. I do think, however, that Johnson
Controls bought the Delco factory and supplies Honda.
Use, climate and luck all play a big role in battery life.
If you ever let your battery go stone cold dead by leaving on lights,
etc. then it's lifetime will be compromised. Many people don't seem to
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