15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed

[brucey]

Hey, I'm just citing you.

[MetroMPG]

Originally Posted by samwichse

about 65 mpg is what I see on my first gen civic hybrid

PS: you should make a garage entry. Add new vehicle

[aymen_a22]

I have just joined this forum, it looks very interesting.

Can I ask what material you have made your front air dam out of? It looks rubbery but I presume it must be fairly rigid.

The car looks good, I have a 2002 SEAT Leon 1.9 TDi so am looking to improve the warm up time when it starts to get a bit colder. I am in the UK so it doesn't get too cold and I already get 54MPG average (UK = 4.55 Litre per Gallon). I would like to get it nearer 60MPG which is why I am here.

[Baltothewolf]

Originally Posted by aymen_a22

I have just joined this forum, it looks very interesting.

Can I ask what material you have made your front air dam out of? It looks rubbery but I presume it must be fairly rigid.

The car looks good, I have a 2002 SEAT Leon 1.9 TDi so am looking to improve the warm up time when it starts to get a bit colder. I am in the UK so it doesn't get too cold and I already get 54MPG average (UK = 4.55 Litre per Gallon). I would like to get it nearer 60MPG which is why I am here.

Lawn edging, it costs 6 bucks at Wal Mart.

[aymen_a22]

Ah I see. Brilliant. So yes, I presume it is slightly rubbery and also fairly rigid.

Hopefully I can find a similar product in the UK. Thanks very much.

[MetroMPG]

Hi, aymen_a22.

The garden edging I used is more "plasticky" than "rubbery". Moreso than the factory airdam material. Fairly rigid, yes.

[MetroMPG]

Calibration update:

FYI, it appears the numbers I posted in the original graph are about 10% optimistic based on my first fill-up against the ScanGauge and a short fill that Phil made with his '07 Civic 5MT. I'll wait for 1 more set of numbers and then will correct & re-post the graph.

But the relative (percent) difference would be the same

[ALS]

Another thought is look at finding a wrecked Hybrid and pull the under carriage aero panels off. There was a member on the board who bought a set for his Civic off the dealer and saw a nice jump in fuel mileage.

Other than that nice work.

[MetroMPG]

Thanks - and yes, I'm considering it (DIY with coroplast, though).

This '07 has a few factory underbody panels (including a full panel filling the space between the rear suspension and the back bumper) but it could be better.

[ptjones]

I don't know if you used a GPS to record you distances, good to calibrate your Odometer with it. Good Luck

Paul