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      02-09-2022, 04:09 PM   #28
okayr
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Drives: 2014 BMW X3 xDrive28i
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Quote:
Originally Posted by Greenman7612 View Post
Well, if the CO is fully combusted to CO2 you will get more energy and save catalyst life.
So I'm suggesting mph might actually improve a bit.
I can see that. With blizzaks on, I'm ranging ~21-23 lately when before the flash I was getting ~19-21. Hwy driving seems pretty much the same but the city number isn't so dismal.
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