Post by
Q45tech »
https://forums.nicoclub.com/q45tech-u112.html
Mon May 08, 2006 11:40 am
The vehicle manufacturers don't usually cheat because their dyno road tests are randomly checked by EPA and besides a really BIG FINE [like another $1000 per car sold] they can be made to test every car as punishment.
Sometimes 0.01 mpg counts and heaven and earth is moved to find it to round up to the next lower tax bracket.
The Government already lets the cheat enough by not specing the test fuel as readily available generic fungible gasoline. This alone boost MPG from the tests by at least 1 MPG maybe 2 if you tweek the programming.
Remember all MPG test are done in the lab with optimum air flow and air temperature. Also the alignment and tire pressure doesn't have to be as low as on the placard. Plus the weight for the driver is 150 pounds and nothing else and the tank doesn't have to be full.....just enough to do the test.
Can you imagine what the real world MPG is with a full load of fuel, passengers and the typical way old cars are maintained..........Sure you can, you see it every day at the pumps.