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MetroMPG · 09-02-2009, 09:14 PM

I would block the top, plus the outside of the bottom (including the fog light holes) where there's no radiator behind.

Test any further coverage gradually. Monitor your coolant temps closely if you have a ScanGauge (the needle on the dash, if it has one, isn't precise enough). Or listen for the cooling fan. If it's coming on more than normal, you've gone too far!

09-02-2009, 09:14 PM	#2 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,537 Blackfly - '98 Geo Metro Team Metro Last 3: 70.09 mpg (US) MPGiata - '90 Mazda Miata 90 day: 54.46 mpg (US) Appliance car Mirage - '14 Mitsubishi Mirage ES (base) 90 day: 51.82 mpg (US) Thanks: 4,082 Thanked 6,986 Times in 3,616 Posts	I would block the top, plus the outside of the bottom (including the fog light holes) where there's no radiator behind. Test any further coverage gradually. Monitor your coolant temps closely if you have a ScanGauge (the needle on the dash, if it has one, isn't precise enough). Or listen for the cooling fan. If it's coming on more than normal, you've gone too far! __________________ Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata Honda mods: Ecomodding my $800 Honda Fit 5-speed beater Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage. Ecodriving test: Manual vs. automatic transmission MPG showdown EcoModder has launched a forum for the efficient new Mitsubishi Mirage www.MetroMPG.com - fuel efficiency info for Geo Metro owners www.ForkenSwift.com - electric car conversion on a beer budget