96AMG

At slow/unreal=unsafe highway speed, a 220 will render 27MPG..off course a pool of German engineers backed with billion dollar budgets AND the "unfunded" EPA gov team are totally wrong and you are right..right?

LawRens

Update as of 4/5/10

Was romping and stomping around town with my lead foot on my most recent tank. Did constant 75 on the freeways. My MPG was 20.5... Which makes me go wtf? I featherfoot the throttle and go constant 70 to achieve 22mpg, and having fun with the car this time nets me just 1.5mpg less?

Screw it, i'ma be romping and stomping around town from now on But sadly, i wish we had mpg indicators on our tach, or center console, so i can see real-time mpg.

DRBC43AMG

Hi all!
I use this site in Germany to register all my fuel consumption. http://www.spritmonitor.de/en/
Interesting as you can compare with similar cars. May need some "special" conversion calculation as results figure in liters, but I think a gallon option (imperial?) exists. Don't know about US gallons though.

PaulRicciardi

Just about peed my pants with excitement last weekend on a trip.
All interstate driving and a bit of state highway driving-26mpg. Return trip took a different route to see the gf before I went home, mostly state highways-23mpg.

Pretty happy with that, my two best tanks in one weekend!

LawRens

Went to socal euro two weeks ago; caravaned with a bunch of Volkswagens that went 60mph the entire way. But because of that i surprisingly achieved 25mpg, which averaged down to 20.6 after i went to GMR right after, along with a buttload of city driving the week after.

I'm satisfied for the time being.

503C43 ////AMG

I get about 20 mpg smashing around town and freeway. I took a trip to the beach and babied it and got close to 200 miles on half a tank. I have noticed that the gauge doesn't seem to be as acurate for the first half of the tank and that might explain why I got close to 200 miles.

503C43 ////AMG

Right now I am at 85 miles on this tank of gas and the gauge is a little above 3/4 tank so in theory you would think that you could get 400 miles per tank but this is not the case as I had posted earlier my gauge seems to be more accurate after a half of a tank is gone. Has anyone else noticed this? I usually get about 280-320 miles per tank depending on my driving.

DRBC43AMG

Last run to the Ticino (south side of Switzerland) with a major mountain pass to fly up and down in high temperature weather, I averaged 10.65 litres to 100Km for a full tank. Don't know what that represents in US measures

503C43 ////AMG

That is about 22 miles per gallon.

1 liter = .26417 gallons
1 kilometer = .6213 miles

100 kilometers = 62 miles
10.65 liters = 2.8 gallons

62/2.8 = 22.14 miles per gallon

J'espère que cette aide

DRBC43AMG

Thanks for the formula

LawRens

Thread revival and update!

I was pleasantly surprised with the c43 mpg as i drove about 450 miles last night from socal to norcal. About an hour's worth of traffic passing through Grapevine (5mph to 40mph back and forth), and the rest of the time cruising between 55mph-80mph (a good amount of congestion every few dozen miles) and the car netted 26mpg, the highest I have gotten so far.

I calculated the mpg through the fill-up method; filled up the car once, set the trip odometer to zero, drove to near empty and then filled to full again. I then divided the miles driven by the gallons filled (340 miles / 13.05 gallons).

I'm assuming that the mileage would have been even better if it weren't for the nasty traffic on the I-5, but for now I'm glad to know that our m113 engines aren't as bad with fuel economy as I had thought; looks like city driving really drinks gas when compared to freeway cruising.

ghiaguy

That is great-better than my 55! Check out Fuelly - That is where I keep track of all my vehicles mileage and general notes. Not enough AMGs on there! Its a simple and intuitive site and you can text your fill-ups at the pump and it will automatically log them. Im addicted

DRBC43AMG

I agree that M113 engines are not gas guzzlers when cruising on the highway, but floor it often and your statistics will start looking real bad
^1 I also use a site in Germany to log and register all my fuel consumptions. Even found a couple of C43's on there and I'm around the 4th or 5th most economical (when the law is not around and looking..... too closely). Speed fines here have been increased as of January 1st 2013, and for some serious speeding (+50kmh over the limit) for example on the highway will get you in jail for 2 years, plus a hefty fine and the confiscation of your vehicle

morganb

Mainly Highway and country driving gets me 24-28 MPG in the C36.

KJI3jflarryfe93

how do you start your car every morning?
with ecc blocked or unblocked?
check your gas gauge with ac ON position, see how much needle drops.
with ac OFF position at crank needle barely moves.

you wanna save gas always have your ec in OFF position, with red light illumination the very first 5 minutes of driving.
when I bought my car, I thought first time, daem it's heavy on gas at start up.
ec blocked at start up is your temporary friend saving you some gas.

DRBC43AMG

How do you see the needle move if EC is on or off? I can imagine that it may have a small influence, but a heavy foot is certainly the negative factor. I don't see a major difference in overall consumption having my climate control on fully Auto or turned off

KJI3jflarryfe93

have your ec ON position, watch your gasgauge needle drop on your cluster when you start your car at cold starts in the morning.
on cold start when your ec is ON, engine uses more gas at higher idle the first 30 seconds or whatever it is?
ec blocked drains your gastank slower.
I don' want to waste unecessary gas upon cold starts, I found the best solution to turn key to position 2, block ec, then start my car.

in these economical times, waysting gas is no fun when gas prices are steep in europe, in the US there's is a huge difference in price vs europe.
jankees gets more gas for less $$$, it's the opposite for us suckers in western europe!
gas-guzzlers are fun to drive and less costly to own in USA than in europe.

LawRens

It's been pretty cold lately where I'm at, so yes, I drove the entire way with EC on (the red light was illuminated the entire trip). My understanding is that when EC is off(no illumination on the button), the AC compressor is engaged, thereby placing more stress on the belt/engine and marginally decreasing fuel economy.

When it's hot outside though, AC is on all the way!

Sulaco

Using this calculation:

Fill tank until pump shuts itself off ONCE.
Reset trip meter.
Drive to work and back (roughly 85 miles round trip down the interstate)
Show up at SAME pump upon return
Fill back up until shuts itself off ONCE.
Measure gallons used (this is about as close as you can get, I suppose)
Divide gallons used into miles traveled = 27MPG.

Fuzzy on the exact numbers, I only remember the outcome. This is when I first got the car and was treating it like a newborn baby. Nowadays I beat on it quite often, and same math nets me about 20MPG, but only because SO much of my driving is on the interstate at 80mph and no one EVER tries to do a pull with me

Ironically, it's my wife who gets challenged nearly every time she goes somewhere alone in it. And it's always the same: mostly ricers in ****boxes or BMW's. According to her, she's never lost. But I have no way of knowing exactly what she was up against. Safe to say it's no M's or 335/535's.

Dziner82

i calculated a couple tanks on my c43 when i drove it home after purchase from Texas to Michigan. i got 346miles twice per tank, obvioulsy it was 99% freeway driving, but to note i was driving pretty fast, which i usually dont do, in an effort to get home sooner.

I used the most accurate method of filling up to click then noting the gallons used. 14.15 gallons one of the fillups, so that got me 24.4mpg. again i was probably averaging about 77mph, some stretches of 80+, so i imagine driving 68-70mph would have gotten me about 26-27mpg, but thats under ideal conditions. i have only tracked the city driving economy once, i wanna say it was like 17mpg? will try agian in the spring.

also, i found the first few fillups with the car the fuel pump would click full when it was nowhere near full it has happened at more than one pump, so i dont know what the deal is, i mostly notice it when i lock the pump in place so that it pumps itself, seems to not be a problem when i physically hold the trigger on the pump.... odd.

Sulaco

Thread revival, again!

Anyone out there got any info on the sweet spots for the C43 mileage? I cruise at 80-90mph on the interstate and then get stuck in crazy traffic a lot in the mornings. I really need to get my foot under control to start saving on gas. The best I'm managing these days is 18mpg. Need to get that back up!

KJI3jflarryfe93

disable ECC if you want to save gas.
hit the EC switch first thing in the morning b4 you start the car, it will save you lots of gas everytime you start her up when engine is still below work temp.
after 5-10 minutes of driving enable ECC if you want cold breeze in the cabin

Dziner82

just to update my old response...
I definitely do not get better mileage driving 70-72mph on the freeway then high 70's, haven't specifically measured the consumption, but i just know its not as good as that first trip when i bought the car and was averaging 77+ mph on long stretches. next thing i guess is for me to try going even slower, maybe like 65-68mph to see how that works.

city driving is absolute **** mileage so not even trying to save gas there

Sulaco

i've read that you need to stay at the lowest RPM of your highest gear without making it shift down?

Tony_AMG

I remember last November 2013 driving up to Mariposa, Ca from Culver City, took me a good 4.5 hours or so, i filled up tank, had the K&Ns and pounded 120mph at times but basically kinda drove 80mph on average. when I got there, i had about a 1/4 Tank left on the C43. I couldn't believe I that kind of mpg out on the C43. Was a long trip and still had time to be able to get good gas mpg. Not the greatest but very good in all seeing this is a V8. 4.3 liter.