The parts store did measure with a load tester and it showed to be good...... the tester estimated CCA at 610 when it says 750 on the battery, so that makes me think the battery isn't that good. It's an Interstate 60 month battery going on 46 months so I'll be carrying a set of jumper cables with me until I'm sure it's the battery that's the problem.... then I'll replace it.

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1985 300D Turbo ~225k
2000 F350 (Powerstroke) 4X4, SWB, CC, SRW, 6spd ~148k
1999 International 4900, DT466e (250hp/660 ft/lbs), Allison MD3060 ~73k