You want better gas mileage? Then do things that really work. A long warmup before driving is not only unnecessary, but also wasteful - I never let it idle more than a minute.
Drive the speed limit because higher speed means lower fuel mileage.
Keep your tires properly inflated (run them toward the upper end of the inflation range to decrease rolling resistance).
Keep the vehicle in proper tune so the engine is running at peak efficiency.
Make sure the front end is properly aligned to limit rolling resistance from misaligned tires.
Remove unneeded cargo from the vehicle to lighten the load.
Check/change the air filter regularly.
Forget about "gas saving" devices because 99.999% of them don't work.
Group: alt.autos.gm Date: Fri, Apr 21, 2006, 11:25pm From: snipped-for-privacy@hotmail.commie (Charles) How would I get better gas mileage. Should I let the engine idle for 3
-5 minutes, while waiting for a school bus, after driving 1/2 mile after a cold start ? Or should I turn it off as I do now =A0=A0I have an '06 Sienna. In the morning my commute begins by taking my 3rd grade son to his bus top, 1/2 mile away. Then I take his 4 y.o. brother to pre-school about 4 miles away. Then I drive about 10 miles to work. I know about the cold start process of emission controls. Yeah yeah yeah, it's the topic du jour ...
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "Sometimes, when you're up to your butt in alligators, it's hard to remember that the intial objective was to drain the swamp." ~ Unknown ~