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This approach makes so much sense. Wish I had done this! Would've paid $300 for the software upgrade, and scored some increased range, and not bothered with the degradation test.

I was getting 12.8 consistently for a few months. Got the battery degradation test done, and was forced to upgrade software. Was told I "passed" 70% exactly. On the hook for $900. Batt kappa max now shows 14.4. Higher than when I first bought the car (It used to show ~13.2 when I initially got...

There's a test. Cost varies from dealership to dealership, but most of the places I called to book my test quoted 2 hours of service time plus $300 software upgrade (though it takes way longer than 2 hours). Total quote for me was $900. If your car fails the test (i.e. has a capacity of less...

Same here. Used to work in refinishing. Feed & Wax is just the thing.