where I live, I'd keep going until the battery died.
up in your neck of the woods though...yeah, a nice Interstate battery with a minimum of 850 cca seems like a nice safe insurance policy
__________________ 2002 Excursion XLT w/ V-10 <---Build thread 2005 Cadillac Escalade w/6.0 - I was a loyal Ford owner for years - Now I'm not - I suggest you carefully evaluate their policies before trusting that supposed Warranty
Replaced mine last month (04 lariat). Drove to the gym, came out and it was dead, so dead a jump start was hard to get it going. Replaced with a Napa 880 cca for a $100.00. Five years up north....no complaints.
04 with 72,000 miles and original battery. Granted, being from texas it hasn't had temperature extremes like you have. When it goes I'll probably put another motorcraft in it, which will probably be right after I post this.
04 F150 XL Reg Cab Long bed
4.6, 3.73, 4wd, Toyo Open Country A/T
Astro bed cap, Toff bedliner
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