Ck986

Is the gauge accurate? It says I'm getting 13.8mpg on avg. I am only driving around town with some highway. I cant believe she's more of a pig than my gas Touareg.

2K7TTMIA

sounds about right for city and some highway. My schedule avoids most rush hour traffic and my gauge reads 14.3mpg.

Edinsf

14 in the city and 22 cruising on the freeway with no short blasts.

Macster

Pretty accurate based on my observation. Accurate enough I no longer bother doing the math myself, but rely upon what the computer says.

Around town is a mileage killer for these cars. To state the obvious, hard acceleration is another.

Even driving judiciously around town -- and I drive no other way to avoid ticket trouble or worse -- my 03 Turbo (6-speed manual) the mpg number dips into the middle teens. A bit of around town driving with the rest freeway driving has the mpg in the high teens (today I filled up and over 193 miles the mpg average was 18.8mpg with an average speed of 37mph).

I can improve on this if I avoid any around town driving and bring the mpg up to 20mpg maybe a bit higher.

To do any better requires an open highway with no stop/go traffic (sometimes hard to find here in my area of CA) and staying strictly on the highway (and no hard accelerations).

This kind of driving will get the mpg up to the mid 20's, and once out of CA and on really open and uncluttered highways with 26mpg maybe 27mpg about as good as it gets unless I get on a nice long flat straight stretch of highway with a cop following me and then 28mpg gets temptingly close.

Around town watch the boost. If you see the boost gage showing boost the engine is really gulping the gasoline. Around town, on the highway too, I try to drive the car in in a way to avoid triggering any boost when I want to get good gas mileage.

(This is harder than one might think. For instance just driving at 65mph or maybe 70mph -- using cruise control -- on the freeway when the car climbs the grade on I-580 starting just east of Castro Valley (CA) up to the crest or top at around 1K feet above sea level the boost can reach and hold at 0.2 bar for some distance over the several miles of upgrade.)

Actually the Turbo gas mileage isn't that bad for my 02 Boxster with its 2.7l engine and 5-speed deliver around 2mpg better mileage under the same driving conditions over the same roads.

jumper5836

Not normal I get 17-20 mpg depending how much a play, 8.3 mpg at the track full out, 25 mpg on hwy

You might have a turbo leak. That I believe causes high fuel consumption, have your mechanic do a smoke test.

jumper5836

I am a bit surprised I would think the 2.7 would sip fuel. My C4S 3.6l same size gas tank as the Turbo is much better. 10 mpg on track, 31 on hwy and averages 20-25 mpg DD

"02996ttx50

that's right on the money.

Kevinmacd

Last cruise yesterday doing 80 mph I was getting 26.4 mpg, keep your foot out of it and could average 16 - 18 mpg.

Ck986

I would get about 350 hwy mile per tank on my old 2.7. Would you hear the turbo leak? I do step on it but not much. I may be driving in too low a gear as I am not use to the turbos power yet and drive it like my old 2.7. Based on most peoples experience it sounds like my car is performing like everyone else's.

coil222

13.3 mpg avg here.. X50, reflash and bolt ons.

Dock

I average around 17-18 in the city, and 24-25 at 80 mph on the highway.

thomapa1

I get 14-16 around town, 20-25 highway on a well tuned turbo.

blockhed

When I had an 02 with k24's, tune, exhaust at 80mph cruising she would see 30mpg, was always amazed. Around town, right foot problems

wross996tt

You realize this is impossible for us to answer. We could talk about the experiences (and data) we have regarding our gage, but it is not yours. Why don't you correlate it to a known amount of fuel over a known distance?

Ck986

I disagree, as the computer is doing that calculation. On my car the computer reads 13.8mpg, i assume this if realtime or since refueling. I'm just wondering what the value most folks are seeing and if its comparable to what my car is reporting.