Fuel Economy
 

If this isnt the best place for this please let me know.

I got my 04 Blazer right before I started a new job, and didn’t realize I will be driving 5000+ miles a month, and how much the gas would end up costing.. Not complaining I love my Blazer, but had a few questions regarding fuel economy.. My work pays for everything except for gas. I mean they pick up the Payment, and insurance, but not gas. I was wondering if there was anything that can be done to improve gas mileage? I have to carry a good amount of parts, and tools, but the truck is not overweight. I was wondering if people could post their thoughts on improving MPG. I would love to here people's thoughts on this no matter how extreme. Other than full out engine swap (love the 4.3) I would like to know the pro’s, and con’s of these changes also if it will affect warranty! I will be driving this for probably 4 years or so, but would be interested to here what some options may be. Im thinking things like intake, ignition system, and such….

RE: Fuel Economy
 

Thought I'd bump this to the top as I would be interested as well...getting delivery of a new Jimmy in a week and was curious about this.

Someone mentioned to me that simply putting a K&N filter in would improve fuel economy...any thoughts on that anyone?

RE: Fuel Economy
 

A few ideas

Volant or K&N cold air intake kits

Throttle body spacer

Headers

Free flow exhaust (flowmaster is what I would suggest 40 series sounds great on them)

With all that on my 1997 blazer I get around 16-18 mpg around town and going from 24 to up to 27!!! mpg on the highway

RE: Fuel Economy
 

K..understand the K&N intake kit as well as the free flowing exhaust...

What is a 'throttle body spacer' and what do you mean by headers?