Another gas mileage thread

[Stresst]

Let's back up here I didn't mean to insult anyone!!! I know I haven't been here very long but anyone who does know me knows that. Some people take things too seriously. I'm not gonna start a fight with people I don't even know. Fwiw I have a hard time typing what I actually mean sometimes. There have been many times over the years that people assumed what there mileage is/was but never really hand clocked it. That's all I simply saying..... I will continue this when I get home. Didn't mean to piss anyone off.

 

[gpracer1]

 

[TheBlueBeast]

Just to chime in, throw my numbers in the mix here, I have seen nearly 21 mpg (hand calculated on a nearly 3 hour trip from school to home) in my 4 door. I always check my mileage every time I fill up, it's something my dad always did, so it's a habit that was taught to me as a little guy. Plus, if that starts to tank and no SES light, I can make a safe guess something is wrong.

I am totally stock, 3.73 gears, and to get that I drove like the old man that causes road rage (slow starts, coasting when possible, never going above 61). In town I have seen anywhere from 11 to 15. I totally agree that it really comes down to finding that sweet spot. Now, if I can find a semi to draft behind while in my sweet spot, that might give me some fun bragging numbers

But realistically, that's not a common thing, and I have to seriously be careful to get good mileage. As long as I keep my head out of my ass (and foot out of the throttle) I'm ok. I think I read somewhere that the EPA estimates on the sticker, usually run with unrealistic driving scenarios so it is possible with responsible driving to beat those, IMO.

That's my .02, for what it's worth.

 

[Stresst]

Just to chime in, throw my numbers in the mix here, I have seen nearly 21 mpg (hand calculated on a nearly 3 hour trip from school to home) in my 4 door. I always check my mileage every time I fill up, it's something my dad always did, so it's a habit that was taught to me as a little guy. Plus, if that starts to tank and no SES light, I can make a safe guess something is wrong.

I am totally stock, 3.73 gears, and to get that I drove like the old man that causes road rage (slow starts, coasting when possible, never going above 61). In town I have seen anywhere from 11 to 15. I totally agree that it really comes down to finding that sweet spot. Now, if I can find a semi to draft behind while in my sweet spot, that might give me some fun bragging numbers

But realistically, that's not a common thing, and I have to seriously be careful to get good mileage. As long as I keep my head out of my ass (and foot out of the throttle) I'm ok. I think I read somewhere that the EPA estimates on the sticker, usually run with unrealistic driving scenarios so it is possible with responsible driving to beat those, IMO.

That's my .02, for what it's worth.

What kind of truck are we talking about??

 

[gpracer1]

I also want to throw out there that factory oem cars that have instant mileage on their DIC (digital info center) like my vette, there is no way to calibrate it. You read whatever the factory sets it up to.

Change gearing or tire size, etc and you are way off.

My speedo is about 8% off. With the Ultra Gauge it reads off the same sensors the factory DIC uses, but you can put in calibration offsets. You enter the offset by hand calculating and entering that value compared to the UG and it saves that offset. You can also calibrate the speedo to match GPS like I had to.

So with the Ultra-Gauge I can put in offsets for amount of gallons used vs what I put back in the tank from full, hand calculated average mpg and actual gps speed. Once you do this, it is real and instant mileage is real.

 

[Stresst]

I get 15.5 mixed. ( i have electric fans, upgraded mpfi, k&n filter, and a few other things, oh and 265/75/16 all terrain tires) just highway i get 22mpg at 65 and 19.5-20 at 70. kinda rude of the dude to be jumping all over people... maybe your the one that cant divide right... i can get 450-500 miles out a full tank. if you dont believe us bro then like the guy said. ***. we know how to do math. with proper air pressure and maintenance it can be done. No not 45mpg like a prius or some shit like that... but yea its possible to get 18-20. my dads 2500HD duramax gets 24mpg and thats hand calculated, the computer on the truck says 19... buddies dodge gets 28mpg hand calculated, it can be done, sometimes its just a few things you gotta put together to get (and money in some cases)

I already apologized being out of line and rude but after re-reading this thread please explain something to me. You say you get 22mpg on the highway but then a few sentences later you say with proper pressure and maintenance thats "IT'S POSSIBLE" to get 18-20. Which one is it? Not trying to be a dick rather understand what I maybe missing out on with my truck. But then you mention you get 450-500 miles out of a tank of gas but that conflicts with your last two statements cause that would mean the mileage is 15-16.66 mpg. So which one is it?

---------- Post added at 05:21 PM ---------- Previous post was at 05:12 PM ----------

One thing here... The two trucks that i said (duramax and dodge) that was put in there as to say its achievable to get better gas mileage out of something that doesnt get good gas mileage to start off with. MFDF.

Yesterday... Me and three buddies (that go to wyotech, so we know cars) were all together and i needed to fill up. pull in the station trucks just about completely empty... i fill up 26 gallons later... and 95$ out of the debit... i go to check my mileage becasue im always doing that since im modding and all kinds of things at school... 4 people get 21mpg... The trip says 553. so 553 divided by 26 EQUALS 21.27... you sir need to go back to 1st grade math.25.38 miles. if i was getting 660 a tank it would be roughly 25.38 mpg...

Just to rewind a bit you said you get 22mpg in your other thread 22mpg X 30 gallons of gas is 660. Thats where the 660 came from. It came from the numbers you gave me. Yesterday you got 450-500 per tank today you get 553 miles per tank. Whats tomorrow gonna bring? You know what im am so sorry I ever said anything! This will be my last post about this subject!

 

[Donnie Yukonie]

Wow ok mpg’s are estimates not factual back then so in reality you can. I got 11mpg out of mine towing a boat on the interstate in 3rd (A4) with 3.23 rear and over a 155k on the clock. I don't doubt you could get 19 or 20 out of a good running truck even if it's loaded up. I had my boat loaded and the truck absolutely packed. When you find the right speed/rpm it will make the mileage.

---------- Post added at 01:42 PM ---------- Previous post was at 01:29 PM ----------



Well do some reading on the new hemi. They had problems getting it to burn enough of the fuel mix to pass emisions so thats why they use two spark plugs in each cylinder of the head. also Doge EFI tunes Suck. Dodge will tell you this. They retune the 6.1 srt8 cars all the time and make good gains on tunes alone. The lead enginer said in an article I read a while back that dodge left alot on the table when they came up with the tune on the 6.1 and when they did the 6.4 they made sure to work on the mid range power in the tune. My 2002 4.7 Quad cab ram got 19.5 on the interstate with 3.55 rear and 20inch tires.

i still dont get it tho i mean if you really think about it an engine with more power working less to pull less weight should get better gas mileage?

 

[Stresst]

i still dont get it tho i mean if you really think about it an engine with more power working less to pull less weight should get better gas mileage?

I think I worded it poorly, the 6 cylinder was being taxxed in reality it was too small for the truck. Smaller motor doesnt always mean better mileage rather then an less inexpensive alternative desinged to make consumers buy. The V8 was more efficient I guess due to the weight to power ratio.

 

[gpracer1]

From the perspective of engine power vs mileage (assuming aero is the same for all) you want to be at the rpm range of maximum torque with the lowest rpm. You will find that at light cruise getting the best mileage your vehicle will be in the torque sweet spot and your timing (important) will be maxed. Higher timing during cruise = better torque and mileage........until you ping/knock.
This is also why super unleaded can give you better mileage than regular, because you can increase the timing.
Put a V6 in the same heavy weight truck and it has less tq, so you make less mpg even though you have less cylinders sucking fuel.

 

[Trippers99hoe]

This thread has turned ugly just like the last MPG thread,This thread was started by a guy who took his truck on a long trip and was pleasantly surprised he got 18+ mpg ....