The Stock Market today....

[Rico]

Making the speed limit 55 - I tried that for a month.  I saved maybe 2 gallons.

I suppose you stopped now right? Actually, that's not too bad if you started with a 10-gallon tank. That's 20% savings. If I travel between 60-65 mph instead of 65-75 mph I get an extra 5 to 6 mpg or about 19% -23% more mpg. That's over $9 in savings for me for every tank.

It depends on many factors again.  Engine size, car weight, roads driven, etc.  I think Mark was saying he saved maybe 2 gallons over a whole month of driving.  I'm not sure how many fill ups that is but I'd guess 4 or 5.  Say at a 15 gallon tank that's at least 60 - 75 gallons with a 2 gallon gas savings or about a 3% savings.  Not really a big amount.  One less trip somewhere will save about that.

[billybob476]

Than again...if everyone used 3% less gas...

Nah, it wouldn't affect the market. Oil companies would just withhold more supply.