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Owner: mpg_numbers_guy
His (Benny): 2006 Honda Insight MT
Displacement: 1 L
Fuel type: gasoline
Transmission: manual
Curb weight: 1881 lbs
Coefficient of drag: 0.25
Frontal area: 20 sq.ft.
Description: IMA battery completely deleted, gasoline only. Current weight is right around 1800lbs.

Bought with 254K miles for $1500. Mechanically perfect. 99% rust free for being a Michigan car. 1 owner except for the guy I bought it from owned it for 1 week and didn't like it. Has none of the common issues with Insights - no oil leak, no transmission grind, no wet seatbelt issue, almost no rust, rear hatch works, power locks and windows work. Body needed a little bit of work - a little bit of the paint in some areas was scuffed and needed retouching (mostly fixed). Driver's mirror was bondoed on (since removed). Front pumper is pitted and I am hoping to repaint or replace it eventually (partially touched up).

254,800 - valves adjusted, new 12V battery installed
255,000 - ground straps replaced
255,500 - brighter reverse LEDs installed
256,000 - panoramic rear view mirror installed
256,100 - passenger mirror deleted
256,200 - smaller driver's side mirror installed
256,300 - license plate light replaced with LED
256,400 - Regen switch wired up and rear belly pan installed
256,500 - Car detailed and paint touched up
256,600 - Scott's belly pan installed
257,500 - LED brake lights & running lights installed
258,500 - Oil and filter changed, front-mid belly pan installed (connects Scott's to mid area panels), LED headlights installed, custom center armrest & console installed
259,300 - WHITE/GREEN wire on DC-DC cut to keep 12V fully charged
260,500 - Added additional underbody paneling to the rear of the car
260,900 - Fixed rear hatch not locking, replaced front speakers with Polk DB652s, and replaced upstream catalytic converter and all surrounding hardware.
261,700 - Deleted IMA battery along with computers and wiring. Bypassed starter relay.
261,900 - Deleted DC-DC converter, MDM, and heat sink. Replaced with Meanwell HRP-600-15 pseudo-alternator
263,400 - Replaced driver's side parking brake lever and cable, and installed 8" subwoofer.
264,000 - LED flasher relay and LED turn signals installed.
264,200 - Finished rebuilding rear post-IMA delete.
264,300 - Oil and filter changed, tires rotated
265,900 - FM transmitter installed. Clutch system bled and fluid changed.
270,700 - Starter replaced
271,400 - 12V battery replaced under warranty, transmission ground strap replaced and relocated. Driver's side rear drum brake springs replaced.
271,800 - EGR cleaned, oil and filter changed, modified rearview mirror setup refinished.
279,600 - Oil and filter changed

Best full tank: 93.39 MPG (882.2 miles, filled on 8/9/2019).
Best partial tank *: 111.87 MPG (178.6 miles, filled on 7/24/2019). **
Best long trip (>100 miles): 98.4 MPG (128.0 miles, 8/16/2019).
Best short trip on level ground (<100 miles): 128.5 MPG (6.5 miles, 8/3/2019).

* Partial tanks are full tank fill ups, but mileage does not include pizza delivery driving, which is logged separately.
** This complete tank was 918.7 miles at 92.12 MPG.
Build Thread: 2006 Honda Insight MT Build Thread
Current Mods: Fuel Economy:
  • Bridgestone Potenzas @ 80 PSI.
  • Lower grille block
  • Hot air intake w/ intake resonator deleted
  • Rear wiper and motor delete w/ plug, -3lbs (link to buy)
  • Passenger mirror delete, -3lbs
  • Smaller driver's side mirror, -2lbs
  • Scott's belly pan (link to buy)
  • Coroplast front-to-mid belly pan (connects Scott's to mid area panels)
  • Coroplast rear belly pans
  • Brake reduction clips (link to buy)
  • K&N air filter
  • Full synthetic oil (0w20, Honda recommended)
  • IMA deleted along with computers and wiring, -72lbs
  • Arduino bypass for off road use only. Lean burn code used with leanburnminactivationspeed set to 27 (22 mph)
  • DC-DC converter deleted along with MDM and heat sink, -32lbs
  • Meanwell HRP-600-15 PSU pseudo-alternator and hardware, +4lbs
  • SQL 100A Amp 3 Phase Diode Metal Case Bridge Rectifier (link to buy)
  • Aluminum bar from IMA compartment repurposed as a heat sink for the Meanwell PSU.
  • Bypassed starter relay for instant 12v starting
  • Two (2) Scythe Kaze Flex Sealed Precision FBD 120mm fans as intake and exhaust fans for the Meanwell compartment (89.3 CFM, 2000 RPM fixed, 38 dbA) (link to buy)
  • Honeycomb fan grilles to protect Meanwell compartment cooling fans (link to buy)
  • Switch to manually control operation of Meanwell compartment cooling fans
  • LED flasher relay for LED turn signals (link to buy)
Comfort & Convenience
  • Rubber floor mats, +3lbs
  • Panoramic rear view mirror, removes blind spots (link to buy)
  • Paint touched up with OEM Honda Rally Red (Civic SI coupe OEM color). Very close match to the Insight's New Formula Red
  • Ecomodder window sticker
  • Modified center console from 6th gen Civic w/ custom armrest
  • Replaced front speakers with Polk DB652s, +2lbs
  • Shift knob from 8th gen Civic (2006-2011)
  • Rockville RW8CA 8" 600 Watts Peak 150 Watts RMS Under-Seat Slim Amplified Car Subwoofer (link to buy)
  • 1" rear and 1/2" front seat risers
  • Rear speakers delete with rear rebuild
  • Rear rebuilt for more storage space after IMA delete
  • Rear carpet done with near-perfect matching Medium Dark Pewter Superflex Ozite Automotive Carpet
  • FM transmitter to play personal music and view 12V voltage.
  • Brighter LED reverse lights (link to buy)
  • LED license plate light
  • Front parking lights delete
  • LED "CK" non-polarity-specific brake/taillights (link to buy)
  • LED headlights (link to buy) Note: No longer available in the Insight's size in white (9003/H4)
  • LED turn signals (link to buy)
Instrumentation (besides factory):
  • Scangauge II (curtesy of Ecomodder & Linear Logic: Ecomodder 11th Anniversary Contest)
  • Torque Lite app as an altimeter (hypermiling tool for hilly and mountainous driving)
  • Voltmeter on the FM transmitter for 12V battery readout

Planned Mods: Electrical
  • Lithium LiFePO4 12V 20AH battery from
  • Relocate battery to interior rear
  • Return the 12V or meanwell kill switch.
Comfort & Convenience
  • S2000 e-brake handle
  • Steering wheel from 8th gen Civic (2006-2011)
  • Polk DB652 rear speakers in custom boxes
  • Add a louder horn in addition to stock horn
  • HID headlights
  • Interior LED lighting
Long term..
  • Replace/repaint front and rear bumpers
  • Full aluminum/ABS belly pan
Official Fuel Economy Ratings
EPA city 48 mpg(US)
EPA highway 58 mpg(US)
EPA combined 52 mpg(US)

Actual Fuel Economy Performance
Lifetime 81.9 mpg(US)
Last 3 tanks 78.73 mpg(US)
90 days No data entered
View Fuel Log
Last updated: Aug 22, 2020

(Created: 2018-11-22 15:18:42 / Modified: 2023-01-21 16:56:52)

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