Scotty!
I love your videos. I'm a service plumber and I really appreciate the honesty and the best bang for your buck product and repair reviews. Real advice for real people. Im in Calgary AB Canada, and I have a 2018 GMC Savanna cutaway that doesn't like starting when it's -30° Celsius. It starts to smoke black only on super cold start ups. In my 2000 mazda b3000 I put in a larger cold cranking Amp battery and it's never let me down in the winter. If I put in a larger cold cranking Amp battery into a much newer vehicle will I mess up the electronics as it's a 4.3 L V6 or will it start everytime like my 3.0 liter ford quarter ton everytime?
I look forward to your response and new video,
Matt
Can I Install a Higher CCA Battery in Modern Vehicles?
As long as long as the battery fits properly under the hood, you can use any cranking capacity battery you like. They are all just 12V batteries. It would be like running your lawn sprinkler from a fire hydrant. The pressure is the same, so it will work exactly the same as it would from your household tap. But it's overkill because you'll never use the full capacity of it.
Here's the thing... you shouldn't need special batteries. The OEM spec battery should start in any weather.
I also live in Canada and drive a Savana V8 (bigger engine than yours and requires more energy to start). And it always starts on first crank. Even a few years ago when temps went to -30. So if your engine struggles to start then you have other issues that you need to address. I would also make sure to use the block heater.
