I ended up picking up a battery at Costco, Kirkland brand that looks to be the same style sna shape as the battery I have now and it lists 900CCA at 0 farenheit and 1000 CCA at 32 farenheit...

Best of all it was $49.99. I'm gonna try it out and see how it runs on it.

The reason I am trying another battery because that last time we had these cold temps it didn't pose as big of a chore to crank the engine. Today I have been letting it glow longer so that it won't have to crank as long to catch. On the third engine rotation she caught with no issue, but it did turn really slow though.

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#dieselFLEET
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'97 E300
'99 E300