Whats you gas mileage on your squarebody truck?

[davbell22602]

I thinking on selling my GMT400 and getting a half ton 4x4 8ft bed w/350 engine for hauling/towing. I'm currently getting 16mpg on the highway/interstate unless my auto tech teacher calculated wrong. I have 26 gallon tank and pulling 330 miles with it full tank with just driving on the interstate. Would get any better than 16mpg with a squarebody 4x4 regular cab?

 

[guitarfreak235]

I thinking on selling my GMT400 and getting a half ton 4x4 8ft bed w/350 engine for hauling/towing. I'm currently getting 16mpg on the highway/interstate unless my auto tech teacher calculated wrong. I have 26 gallon tank and pulling 330 miles with it full tank with just driving on the interstate. Would get any better than 16mpg with a squarebody 4x4 regular cab?

i get 16 combined and i drive mostly through town. i have 2 tanks and a stock 305 except for cat removal, flame arrestor removal, and smog pump.

 

[Messenger]

Don't drive over 55mph. Let your truck build up speed going down hill. Let it decelerate going up

 

[guitarfreak235]

Don't drive over 55mph. Let your truck build up speed going down hill. Let it decelerate going up

thats exactly what i did when i first got my truck. it ran so bad i had to in order to make it anywhere! anything over half throttle would choke it down especially when cold. i bet it had 50 horsepower max.

 

[davbell22602]

Plus the vortec 350 that I have it is nothing but a money pit. It still dont run right. I still have a miss in it.

 

[guitarfreak235]

Plus the vortec 350 that I have it is nothing but a money pit. It still dont run right. I still have a miss in it.

get yourself a nice square! and btw 330/26=12.7 mpg........

 

[smurph20]

Yup his milage for his GMT400 is what im getting out of my K20 350/sm465/410 geared

 

[Old77]

I get probably 10 - 12 mpg I love it!!

 

[guitarfreak235]

Yup his milage for his GMT400 is what im getting out of my K20 350/sm465/410 geared

mine is geared around 3.48 i think (somewhere around 3.5 for sure) but the 305 probably plays the biggest part in my mileage

 

[Old77]

Plus the vortec 350 that I have it is nothing but a money pit. It still dont run right. I still have a miss in it.

....and you've been through mechanics school

 

[davbell22602]

....and you've been through mechanics school

I dont know what it is. My teacher doesnt know either. I replaced all the stuff that one replaces when having a miss.

 

[smurph20]

What about a valve problem

 

[davbell22602]

What about a valve problem

I didnt know. I know had 200 on compression per cylinder. I post it on thread under other vehicles but dont know its at.

 

[skysurfer]

What are you hauling back and forth on the interstate that requires a truck? Simply trading one gas-hog for another won't solve your problem.

 

[davbell22602]

What are you hauling back and forth on the interstate that requires a truck? Simply trading one gas-hog for another won't solve your problem.

I'm not hauling anything. I was it driving back and forth to auto tech school which about 30miles/30min drive each way going 70 on interstate.