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Old 12-16-2016, 05:40 PM   #115 (permalink)
kafer65's Avatar
Join Date: Apr 2008
Location: Tennessee
Posts: 283

Silver - '15 Mazda CX-5 Sport
Team Mazda
90 day: 37.23 mpg (US)
Thanks: 7
Thanked 60 Times in 52 Posts
I'm confident that the full kitty litter block is safe at those outside temps for your short commute. I need to be below 50 outside for full block to be safe at 10 mile commute. At 50-55 its getting hot the last two miles. I can pull 10 degrees out if I turn the heat on full inside. If you look at the first pic in my build thread below my fuel log you can see the two slits I have on my lower grill block. I just stick two pipe insulation noodles on them to close it off.

Mirror deletes, 80% grill blocks, wheel covers, 50 psi tires = 6% better MPG avg. over a year. Wheel skirts overcoming ethanol winter fuel mpg losses and more!
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aerohead (12-22-2016)