Do NOT make assumptions about changes. - Fuel Economy, Hypermiling, EcoModding News and Forum

dremd · 06-05-2009, 08:12 PM

Little story from today to illistrate my point.

I got home early today and loaded up my bike on my hitch rack. When I got up to speed I noticed my ScanGauge reading about 10 MPG lower than I would have expected it to. For 20 miles I'm driving just thinking about what strange aerodynamic phenomenon I've caused to loose 20% of my fuel economy. On arrival I notice that my right rear tire is nearly flat DOH!

Moral; just because you make a change, does not mean that it is the only change made.

UfoTofU · 06-05-2009, 08:20 PM

That's what ScanGauges are grand for

theunchosen · 06-05-2009, 10:31 PM

Fixed an AC system today. . .assumed it was the compressor. . .actually was the throttling valve and the compressor just ran at lower pressure for a ULEV vehicle.

MetroMPG · 06-05-2009, 10:50 PM

That's a good story, dre.

blueflame · 06-08-2009, 09:23 AM

No matter how useful a garment it is not for eating.

dremd · 06-08-2009, 09:26 AM

Quote:

Originally Posted by blueflame

No matter how useful a garment it is not for eating.

WTF?
No, seriously
lol

zjrog · 06-08-2009, 11:11 AM

Odd, but it does make sense... Must be the theme for the day...

bgd73 · 06-09-2009, 10:02 PM

Quote:

Originally Posted by dremd

Moral; just because you make a change, does not mean that it is the only change made.

so true. Especially unibody cars. Transverse/unibody by far is the most dramatic at any change at all.

I have been welding an old sube with 3 modes in the tranny in the summertime for 3 years now... an experience I won't be forgetting soon. Luck with some of the unibody designs is never an option. some welds take an entire season...mysterious....it even changes fuel in certain places welded.
It makes my second look a bit weird to speak about any car, new or old.
Unlike a guitar string, it may take a year to sound after the pluck...