Ok, for those who are jonesing for more info and another back to back before and after test. I made a hot air shield and installed it, and will be driving to meet my wife for lunch along the same route i took yesterday. Total of 21 miles, mostly freeway, with about 2 miles of city driving. Ambient temps are 60 degrees. Size of block was taken from another post a couple years ago. It's 17" X 6 1/4" with a tab for quick removal. The radiator is 17" wide, and the 6 1/4" covers the distance from the bottom to the top of the air inlet area of the front bumper. I don't have a scanguage, But the radiator fan kicking on if things get too warm(which I doubt) from reading plenty of posts on the subject. Yesterday netted me 65 mpg's on this trip...today, same trip was 70 mpg. Did notice lean burn was a bit easier to get into today. I suppose as long as things are low 60's and below, I'll leave it in. I did turn my heater on on the way back and noticed it felt quite warm.
Last edited by Insighful1; 01-26-2010 at 05:16 PM.
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