Getting very bad Gas Mileage??????

**beclar** · 08-22-2005, 01:01 PM

Hi we own a silverado 2WD, V8. It is getting horrible gas mileage, maybe 12 or 13 MPG. Has anyone else been having this problem. Dealer said nothing was wrong, but obviously it should be doing better than this.

Any suggestions would be appreciated.

**Steve** · 08-24-2005, 10:16 PM

Hi, just a few questions.

What year? What size v8? How many miles are on it? Basic questions. ALso, what do you do with it?

**beclar** · 08-25-2005, 12:14 AM

It is a 2005, V8, low profile. Driving like we would any vehicle. Not hard on it, and never drive over the interstate speed limit. Have pulled a trailer with it once, which is partly what it was bought for and it handled fine, but has never had good gas mileage. Have owned trucks before, and this has never happened. The one odd thing is that when you are slowing down, or trying to break it sounds like the engine wants to race. The dealer noticed the engine does step up a bit, but that is all he said.

With gas prices the way they are we don't need this now.

Thanks for any help you can offer.

**Steve** · 09-17-2005, 11:53 PM

Do you have the gear ratio? This is a little bit low for a V8 that's just being driven around town, etc. I'll have to check to see what the average MPG is for your truck.

**spoontoad** · 12-12-2005, 10:28 AM

I to am getting crappy mileage. I have a 2003 2500HD that gets about 10mpg, and the dealer says this is normal. I know it's not because my buddy gets 13. Mine has 20,000 miles on it and has a 6.0 V8 Stock tires, no engine mods...

**modified04** · 12-21-2005, 08:26 PM

i work for a chrysler dealer and the window sticker is no where near correct you wont get anything close to it the formula they use to determine the fuel mileage is very very old from when the speed limit was 55 everywhere and there wasnt as much stop and go traffic as there is today

**modified04** · 12-21-2005, 08:28 PM

my 04 1500 has a horrible drive line snap when the tranny upshifts on lite acceleration the dealer says they cant fix it on any of them and that they all do it is this true and does anyone elses 1500 make a differential noise when the truck is in four wheel drive at slow speeds on light accel

**Steve** · 01-18-2006, 11:39 AM

There are a lot of variables as well. For instance, how hard do you hit the gas off the line? Do you drive a lot over the speed limit? Open bed or tonneua cover? Etc. My '78 454 suburban will get close to 10 if I drive right.

**Hydramatic** · 03-29-2006, 02:14 AM

Yeah, this sounds familiar. I get pretty crummy gas mileage, but I could care less. I think so far I've averaged around 16 mpg, mixed highway and city driving, with the occasional gunning of the engine at my friends at work, but other than that, fairly sedate driving due to my rear tires being pseudo-slicks. To be truthful, I'm surprised that the Silverado gets as good gas mileage as it does, what with a fairly powerful engine, a heavy body, and a four-speed auto, all connected to a 3.42 rear-end. Very surprised.