How many MPG Does your 911 get?

[TopTuning]

Around 16-22 with E85, turbo, heavy foot

[sky1jord]

Around 15-16 mpg around town, but if i mix in some freeway driving, it goes all the way to 17.
This is pretty much unchanged in my '88 Targa from the day i bought it (1992 with 4K miles on it) to today (127K miles)
It's driven "rapidly", not "maniacally", no leaks. Needs a quart of oil every 1000-1200 miles, plugs always look good after major service, car is stone cold unmodified, so where's the gas been going?

[chrisbalich]

1979SC / 3.0 / 2225lbs - 20.1mpg all-time average - best of 25.9

Hoping with new induction and new EFI this year, I'll bring up both of those numbers.

[Walt Fricke]

I've got a related question. I race an '82 US SC. I've never gotten serious about how much fuel per unit of time on the track it consumes. Below about a quarter of the stock tank it starts cutting out on long corners, so I have to leave a margin, but want to finish just a bit above my minimum weight.

Gallons per hour? Gallons per minute? Anyone calculated this for an SC on the track?

[mikedsilva]

Originally Posted by sky1jord

Around 15-16 mpg around town, but if i mix in some freeway driving, it goes all the way to 17.
This is pretty much unchanged in my '88 Targa from the day i bought it (1992 with 4K miles on it) to today (127K miles)
It's driven "rapidly", not "maniacally", no leaks. Needs a quart of oil every 1000-1200 miles, plugs always look good after major service, car is stone cold unmodified, so where's the gas been going?

I'm only getting approx 15-16mpg for a fairly mildly modified engine.. 3.1litre, ssi's, monty muffler.. runs beautifully, plugs are clean...
I could lean it out a little more I guess and see if that makes much difference

[1QuickS]

• 25 MPG @ 80 MPH (averaged for over 367 miles)
• 23.5 MPG @ 70 MPH (averaged over 200 miles)

Better mileage at 80 than at 70!

1967 911S hot rod, 2.3 liter, twin plug, open exhaust, light weight

[manbridge 74]

32 gallons to go 703 miles equates to 22 mpg. Stayed about 75-80 mph.

Last August so 90F out. Real 2.7RS, meaning MFI with correct space cam etc.

[kclem19]

30 MPG and 70 mph, 25 MPG at 80 mph... 2.4L EFI targeting 14.7:1 and ~50 degrees spark advance at cruise

[LIRS6]

I was searching the forum and found this thread - interesting comment in first post. Deja vu all over again…

Anyway, I wanted to post that I am getting a whopping 12 mpg around town, with some aggressive driving. UGH. Seems really poor. Top end re-build 5 yrs ago, Any smoking gun to look for?

Jason