How many miles logged before you noticed a change in gas mileage?

[s/c ss]

Originally Posted by stardok

Gas mileage? You have a supercharged muscle car and you're wondering about gas mileage? I have no idea what mine gets and I dont care to know. HP>>>>MPG!!!

I'm with you man. If anyone is interested and worried about gas mileage....go buy a Volt. LMFAO.

[silverds]

12.5 mpg during moderate break-in, 13.5 mpg ever since. My daily commute is about 12 miles city, 40 miles highway.

Nearly 7000 miles on the odometer now and after a few resets, the average mpg always settles to 13.5 after any lengths of time. No mods except for pulling the exhaust fuse, and pulling fuses overnight to reset fuel maps.

[ZL1-V]

Originally Posted by DRTH VDR

Same here. Since the 1500 mile break in, I can't keep my foot out of it.

I know for a fact the same will happen with me!

[ZL1-V]

Originally Posted by s/c ss

I'm with you man. If anyone is interested and worried about gas mileage....go buy a Volt. LMFAO.

I mentioned in the above reply that this is not my first modded or supercharged vehicle. I never said I was worried.

[s/c ss]

Originally Posted by Sharp ZL1

I mentioned in the above reply that this is not my first modded or supercharged vehicle. I never said I was worried.

LOL.

[joes407]

16k miles and 13.3 avg mpg. i drive a little heavy footed though. never saw better than 18.5 on roadtrip straight highway miles

[Skylane765]

Originally Posted by Christok

My ex brother in law used to drive 2.5 hours in the morning to work and 2.5 hours at night to get home and did this for about 5 years. (over 300 miles per day mostly highway split between 65 MPH and 50 MPH) In the five year period he went through 3 cars but kept extensive records of his gas mileage. He calculated that his cars started getting their best gas mileage around 50,000 miles. The products were GM and were bought new or with very little mileage on them. May not give you the answer with respect to the Camaro but opens eyes with respect to when cars in general start to get their best mileage.

I would think that at about 50k miles you would get the best mileage.

[c4maroboy]

i only have about 850 miles on my car and am getting around 18.5mpg... hopefully when spring comes that number will grow a little bit!

[Les7311]

Winter grade gas is crap! Am now getting 20.4 mpg on maxima.... summer time i get 24.3 mpg.........

[Skylane765]

Everybody has this? Right

[joes407]

looks inaccurate. 10 gallons left with 135 miles is 13.5mpg but it says 14 on the bottom.

[Skylane765]

Originally Posted by joes407

looks inaccurate. 10 gallons left with 135 miles is 13.5mpg but it says 14 on the bottom.

You see lifetime mpg there are other trips at different MPG. I am getting 15 mpg on the
trip at the time taken. I was running somewhat hard with this last tank, so my mileage has been 13.5 on this last trip.

[Mr. iNCREDIBLE]

I've just cracked 4,000 miles (SS not ZL1) and my mileage has steadily gone up, I was at 12mpg for the first 3,000 miles now I am at 17mpg on average.

My driving hasn't changed in that 4,000 miles, same route to work, same times during the day, etc.

I noticed the same basic change in my 2010 Avalanche with AFM as well, 4,000 miles or so and the MPG jumped dramatically.

Originally Posted by joes407

looks inaccurate. 10 gallons left with 135 miles is 13.5mpg but it says 14 on the bottom.

not really, first off the app rounds up or down it doesn't show quarters or halves. Second, like most cars our tanks are top heavy, you get the best MPG at the top half of the tank and the bottom half it goes to $hit, this is because the tanks are not a perfect rectangle or square, and the half way point is not marking half the amount of fuel, but rather the half way point on the tank. If I fill my tank (and I have) at the half way point, it takes 10 gallons, but it is an 18 gallon tank, it should only take 9 gallons.

[Skylane765]

The range is taken from the last start up and shut off trip. All city driving.