When I push the gas pedal on my manual car down beyond where it accelerates, am I wasting gas? [more inside]
posted by yellowbkpk on May 14, 2008 - 11 answers

Simple tricks to improve MPG? For instance, I've thought about removing the rear seats/internal molding to lighten my car. I've also thought about aero-improvements, such as moon-disc wheel covers, or even somehow making a cover over my rear wheel wells. I'll be removing my rear wing this weekend, but what other tweaks could I do? [more inside]
posted by raikkohamilonso on Apr 29, 2008 - 39 answers

How can I maximize fuel economy in a car with an automatic transmission? [more inside]
posted by wondercow on Oct 9, 2007 - 25 answers

Last night on ABC news there was a guy with a VW beetle (silver) who put a wicked-huge wing on the back and claimed some ridiculously-high MPG figure. Alas, my google fu fails me. Why would this wing possibly work? They guy wasn't a tuner, AFAICT.
posted by Wild_Eep on May 5, 2006 - 27 answers

Why is my Outback only getting 21 MPG! [more inside]
posted by retro88 on Aug 18, 2005 - 24 answers