
Anyone going on a trip over an hour long knows it can be a hassle figuring out how to get the most MPG out of their car... Everything plays a role, tire pressure, wheel alignment, weight, and especially speed.
Howstuffworks has a few tips to help you figure out your best speed!
This is actually a pretty complicated question. What you are asking is what constant speed will give the best mileage. We won't talk about stops and starts. We'll assume you are going on a very long highway trip and want to know what speed will give you the best mileage. We'll start by discussing how much power it takes to push the car down the road.
The power to...