i want to try and get a few extra mpg out of my 5.2. i was thinking of a throttle body spacer and maybe a computer chip would get me a few extra. id there anything else you guys would recommend..

also as far as computer chips go i found alot on ebay that are going for about $10 but i really dont trust them since they are so cheap. any recommendations on one of these and also im not looking to loose any towing capacity if anything i would like to gain

 

Throttle body spacers and "Chips" don't do anything. Don't waste you money. For the best MPG you can get, do a complete tune up, all fluids including brake and diffs. All filters and replace all ignition components. The BEST thing to do is keep your foot off of the throttle, keep the RPMs below 2,000rpms or so. Remember it is a V8 and it is a truck.

 

yea i know its a a v8 i just got the stuff to do a tune up today next week is gunna be coil and all the other stuff but for some reason i dont think the milage is even close to were it should be im only getting about 160 miles to a tank give or take i figured i should be somewere around 200 at the least

 

What size tank? How many gallons to a fill? Divide miles by gallons and get an actual mileage. Your guage could be screwed, which is not uncommon for our Daks. We have a 3.9 4x4 short cab, and a 5.2 4x4 extended cab. Winter driving, winter warmups, etc, results in 10 to 12 on both, and I drive very easy. 4x4 when roads are bad can drop them below 10 but that depends on road and traffic idiots out 4 wheelin thinking they are driving a tank. Best highway mileage in good weather I see: 19 to 22 on the 5.2, 24 to 26 on the 3.9.

 

i think my speedo is off which means the trip is off as well thats why i said 160 give or take but i didnt know the around town milage was that much different from the highway milage