I switched over to Walmart batteries when we were on the road once and couldn't find a Costco, They have served me well and Walmart's are purty much everywhere.
2001 7.3 F-250 LB 6sp. Dump bed, Firestone air bags, DP tuner, 4" MBRP, K&N intake with 6637, in tank mods
2002 7.3 EX limited 4x4, ccv mod, edge evo, 6637, RAS, In tank mods, diesel site tranny filter, JW valve body
Just replaced the 1/06 Kirkland batteries in my 95 7.3 yesterday. The amazing thing is when I bought the truck, it had been sitting for 1 1/2 years with both batteries showing less than 1v. I charged them up and still managed to get over 4 years out of them.
95 F250, 7.3, D60, ZF6, intercooled
2000 F250 7.3 238/100's and some other goodies
My local Costco only has Interstate branded batteries, and don't carry the battery for the diesel. I bought one for the wife's Camry, and mom's Miata, but I'll guess I'll have to go to Auto Zone to get the replacement for my truck. Brandon is too far for me to drive for saving $15 a battery, and having to go all the way over there to get replacements if the need arises. I'd really like to get regular 65N batteries from Walmart, but the ones here only carry the 65S. Plus, I don't the the Deka warranty will cover a purchase from Walmart as they want the battery shop to "test" the batteries prior to paying out the remaining pro rate on the batteries.
Side note, the truck not starting was my birthday present right after birthday dinner.
FYI, you say the battery is a size 6, but directly next to it in a small box it says "65" still...
Funny this thread would have been revived by a link in another thread just yesterday.
The Costco batteries that started this thread four years ago began losing some of their reserve capacity, and since a cross-country trip was less than a month away, I decided to get new ones, again at Costco.
As I lifted the first one onto the counter in their tire shop as the "core", the gal said, "You've only had them four years. There's still some warranty remaining, and it MUST be more than the core charge will get you."
So I took them in to customer service, and they gave me $52 back for EACH one!
That went a LONG way toward paying for the two new ones!
This time, although they are in the same case (and again I guesstimate identical lead weight), they are now labeled "Interstate" instead of Kirkland.
They are obviously still made by Johnson Controls, but Costco probably sells more of them now.
I've said it before, they are made in the same factory. But if they are changing the brand to Interstate, they'll definitely have a winner.
I'd recommend Kirkland batteries anyway, from seeing their performance first hand, and I'd also recommend Interstate as well, again seeing their performance first hand.
That being said, I ran an original Motorcraft battery in my Ranger for almost 10 years. Why I didn't get a Kirkland was because the company I worked for sold Interstate batteries and I got a killer deal on it, cheaper than Kirkland.
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