19+ MPG, about average?
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19+ MPG, about average?
So my gas gauge is non-functional at the moment, but I wanted to figure up my MPG. So I bit the bullett and filled both tanks, set the trip.
Emptied my small tank last night, mileage worked out to be right around 19 MPG (figuring @ 16 gallons instead of actual 16.5 that it holds)
Still got some work to do, just curious if this is round about normal mileage for these trucks or if I can expect more improvement once I remedy the laks in the exhaust & intake manifold.
Thanks for any input
Emptied my small tank last night, mileage worked out to be right around 19 MPG (figuring @ 16 gallons instead of actual 16.5 that it holds)
Still got some work to do, just curious if this is round about normal mileage for these trucks or if I can expect more improvement once I remedy the laks in the exhaust & intake manifold.
Thanks for any input
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Joined: Jul 2008
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From: Long Beach Calimexifornia
Are gas tank"s smaller on I6's than V8's? My 302 holds a fair amount more than that in both tanks. 18 & 17.5, if I remember right.
Although, it's not the best way to do it, but when making engine tweaks where you want to know sooner than later if they effect MPG, I leave gas in one tank, then run the other dry. Then add exactly one gal in the dry tank & run it til it's dry again.
Potential downside. Not allowing for weight of full tank. Sucking off the bottom of the tank where crap is most concentrated (if you have crap in it). Multiple gals provide a more accurate result. But it work's for me!
Although, it's not the best way to do it, but when making engine tweaks where you want to know sooner than later if they effect MPG, I leave gas in one tank, then run the other dry. Then add exactly one gal in the dry tank & run it til it's dry again.
Potential downside. Not allowing for weight of full tank. Sucking off the bottom of the tank where crap is most concentrated (if you have crap in it). Multiple gals provide a more accurate result. But it work's for me!
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Are gas tank"s smaller on I6's than V8's? My 302 holds a fair amount more than that in both tanks. 18 & 17.5, if I remember right.
Although, it's not the best way to do it, but when making engine tweaks where you want to know sooner than later if they effect MPG, I leave gas in one tank, then run the other dry. Then add exactly one gal in the dry tank & run it til it's dry again.
Potential downside. Not allowing for weight of full tank. Sucking off the bottom of the tank where crap is most concentrated (if you have crap in it). Multiple gals provide a more accurate result. But it work's for me!
Although, it's not the best way to do it, but when making engine tweaks where you want to know sooner than later if they effect MPG, I leave gas in one tank, then run the other dry. Then add exactly one gal in the dry tank & run it til it's dry again.
Potential downside. Not allowing for weight of full tank. Sucking off the bottom of the tank where crap is most concentrated (if you have crap in it). Multiple gals provide a more accurate result. But it work's for me!
Senior Member
Joined: Jul 2008
Posts: 58,557
Likes: 1,165
From: Long Beach Calimexifornia
I like that idea, I recently ran my 19gal dry, put 19 into it and ran it dry again and averaged about 13mpg, probably about 60% city 40% highway. (84 5.0 302 v8) I could have done better but there are some roads that angle into main streets that you have to really hit the gas to make it out in a timely manner. I also need to replace my EGR but at 70-80 bucks i just don't have that kind of cash to spend, maybe next week though.
Instead of running the tanks dry to avoid those type of problems I fill my tank up all the way, drive it down and see how many gallons to fill back up. I also recall getting 19 gallons in each tank at one time.