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Old 10-20-2015, 01:25 PM   #353 (permalink)
kafer65
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Join Date: Apr 2008
Location: Tennessee
Posts: 284

Silver - '15 Mazda CX-5 Sport
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90 day: 37.23 mpg (US)
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Quote:
Originally Posted by pgfpro View Post
I would try to get your IAT temps up. Your ecu is seeing the cool temps in the factory IAT tables and adding fuel.
I'm in the same boat with a hard frost yesterday. I tried a little plumbing change to get hot underhood air and 100% grill block yesterday morning to try and help this. It works very slowly, but after 7 miles I'm seeing 20F above ambient but it starts to climb steadly thereafter. Thirty-five mpg was seen way too often in that 7 mile stretch

Its going to take a very long insulated vent to get heat from the headers to my intake snorkle!
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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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