I have a 2005 gmc crew cab z71. I have a 26 gallon tank and I am only getting 290 miles off of a tank of gas is this right? I know other guys who are getting 350 to 400 miles off of their tanks. I checked air filter and most common things. I have 60k miles on the truck and I drive with a light foot. Thanks
You don't say what your actual MPG is, nor what engine you have, but assuming you run to a near empty tank, you're getting around 11 MPG, which does sound low (heck even my Dodge gets better than that, but not by much). What are your actual MPG numbers, and how heavy is your left foot?
I have a 99 Silvy 4wd with the 5.3l and I get better milage then that, around 15 in town, BUT you have a crew cab and it wieghts more then the ext cab, plus I don't think the 05 is areodynamic. Isn't this the timeframe when they started changing the body style to the squared off front end again? When is the last time you had a service performed? That is going to hurt you some, dirty filter, etc..
No shit?? Maybe by service he meant a set of plugs/ wires or perhaps he has leaves in his air cleaner housing. Maybe he has real aggresive tires on it. Who knows? The op doesn't give any info.
I'm not sure I follow your statement. The OP is asking about a difference of 37% max (290 miles vs. 400 miles on a 26 gallon tank), not the almost
100% increase you suggest with a 10 mpg gain. Of course it would be helpful to know what the actual MPG is, rather than the range on a "tank" of gas.
To snipped-for-privacy@yahoo.com, have you calculated your actual MPG, of do you just fill up when the gas gauge indicates you are low and compare how far you have driven since the last fill up? It may be something as simple as the gauge indicates low when you have several gallons left. From your post of MPH vs. RPM it sounds like your OD may not be engaging, which I don't think would account for the kind of MPG loss you claim, but real world MPG numbers may tell a different story.
Ok, I have stock tires on the truck and I only know that when I fill up the truck, it will take 23 to 24 gallons and I am getting around
290 miles from it. It may be normal. I was just asking if it is. I am certain that I should be turning less rpm's then 2200 at 70 mph. The truck is all stock. I just bought the truck (used) with 60k miles. Gm said they did a complete "sevice / checkup" before the truck hit the used lot. So I am assuming that they checked the filters, oil , etc .
Also, when I press the overdrive button, the enginge does not increase in rpms like my old ford. A Gm mechanic said that is perfectly normal for it to not increase rpms. But I don't know.How many gears should I go through before i hit overdrive?
always Remember, Some people Will Tell u anything, Especially what Gas milage they are Getting.. They may be getting less than what you are , but Donnot want to admit it and Then they Tell u they Get better MPG than you do.
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