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Hi. I drive a 92 Honda Civic CX with 410,000 miles on it. I replaced the original CX engine with a DX engine at 245,000 miles, which increased the power conderably, but didn't reduce the mileage provided I kept a light foot on the gas. I've been averaging 54MPG over the past few years, but then a few months ago I started installing drag reduction mods and am now averaging over 66MPG, with a best tank of over 87MPG. So far I have added underbody panelling, 85% grill block, rear wheel skirts, smooth hub caps, and gap filling. In 4000 miles of driving, the fuel savings has more than paid for the $50 in parts I put into the drag reduction program. Future mods I am contemplating include an adjustable radiator door, front wheel well skirts, wheel spoilers, and a boattail.

Hi Basjoos:

___Welcome to CleanMPG as it has been a while since I have seen a post of yours. Although I am not a believer in mods at all costs kind of guy, you cannot beat your results! Nailing 87 mpg over a tank in a non-hybrid is doing something special indeed and I look forward to your hypermiling sig here in the not to distant future.

___Wow, those numbers you posted are hot ;)

___Welcome again and it is nice to see some of my old buds signing in and saying hi.

PS: Let us see some of those mod pics in the gallery as soon as you get the digital camera out! I have been contemplating smooth covers over the alloys and a massive under panel setup given the high speed highway I have to do as well. Makes sure you look at Dan’s (Krousdb) underbelly mods on his Del Sol too as you guys may be able to share some tips …

___Good Luck

___Wayne

Welcome to CleanMPG,
Do you have some larger pics of your vehicle somewhere on the web? If not could you post some here on CleanMPG for us to see? Thanks!

Welcome to CleanMPG!

I uploaded some pics of my car to the Gallery. The next time I have my car up on ramps, I'll need to get some better pics of the underbody panelling, it's hard to get a good shot from under the edge of a low slung vehicle. I got the initial ideas for my underbelly panelling mod from the pics that Dan posted of his Del Sol, but also covered my exhaust system with aluminum flashing, set up so there is a steady flow of air from the engine compartment through the exhaust system tunnel and exhausting out the rear of the vehicle into the right rear wheel well. The underside of the engine compartment is completely sealed and the bulk of the radiator air is exhausted out through the driveshalf openings on either side of the engine compartment into the front wheel wells. I suspect that the rotary motion of the tires acts somewhat like a squirrelcage (centrifugal) blower to help move the air out of the engine compartment.