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klapa
04-29-2010, 05:15 AM
This topic came up in the "dragon run" thread but I wanted to make a separate one about it here.

I have two Celica's - a 92 STX 4AFE manual and a 92 GT 5sFE auto.

My GT seems to get really "too good" mileage on the highway - about 35 to 37 MPG, yet also gets much worse mileage in the "town" - about 22-26 MPG - all based on the odometer "trip meter" setting.

While I now have 16" wheels on the car - which would probably cause my speedometer to read actually slower than I'm actually going - the gas mileage should seem to look worse - rather than better.

The ST is pretty consistent "in-town" - about 25-29 MPG. I don't know about the highway because my GT is the "cruiser". The ST has the standard 14" factory wheels.

Just wondering if this seems "normal" - also to note the the GT has the auto with the "overdrive" and those last mileage figures (~37 MPG) came from my last prolonged highway trip where I drove a total of ~350 miles with 275 of them being on the interstate between 75 and 95 MPH the entire way - with most being between 85 and 90 MPH.

cell172
04-29-2010, 06:20 AM
I have a '92 GT convertible. I get about the same numbers. 24 in town and 33-35 interstate. It really depends on how you drive.

@klapa: my gf's aunt lives in Cary, NC. That's my fun fact for the day.

Grot
04-29-2010, 06:40 AM
I wil trade ya. My 4 cyl Truck gets 17 city. And I deliver pizza for a living.

MCcelica
04-29-2010, 07:10 AM
I'm keeping a tracker to average. First tank on the tracker went 386 miles in my GT-S. We'll see how she does. Keeping in mind that I'm in a very high state, so mileage suffers.

manbridge
04-29-2010, 12:57 PM
I'm keeping a tracker to average. First tank on the tracker went 386 miles in my GT-S. We'll see how she does. Keeping in mind that I'm in a very high state, so mileage suffers.

I'll chime in with my hypermile testing done over the last year on my 5spd 90 GTS.

I'd say its the colder temps/high winds rather than altitude that causes my mpg to fall the most. Unless I'm missing something, MAP sensor senses less baro pressure causing ECU to inject less fuel.

Last summer I averaged 39.5mpg on the same daily 70 mile round trip commute that is hilly, 2 lane. 60mph is around as fast as I go. No stops, and about 20 miles of key-on-engine-off coasting. It also includes 18 miles of gravel road. In winter mpg drops to 35-36.

This car is also stripped of about 300lbs extra weight and has a 95 Camry engine which might have milder cams than OE setup? Plus a few other hypermiler tricks.

My dad's 04 Prius gets 46 mpg on his summer commute of about the same distance. I'm slowly trying to beat him.

MCcelica
04-29-2010, 06:22 PM
Oh yah. My freeway driving was between 80-85. And I have added weight of subs/amps, coats, car parts, trash, and spare change. It was pretty windy last week too. Maybe this next tank will go further. :)

Siyx
04-29-2010, 07:43 PM
I have no clue, is this any good ??

Distance travelled: 450 km : 279.63 miles

Fuel Amount: 68.13 liters :18 US gallons : 14.99 Imperial gallons

Fuel Economy:15.14 liters per 100 km : 15.54 miles per US gallon :18.65 miles per Imperial gallon

Its about what I average on a tank of premium gas. All i know is that when i hit around 400 km on the odometer i better start seriously looking for a gas station.

UtahSleeper
04-30-2010, 04:17 AM
I have no clue, is this any good ??

Distance travelled: 450 km : 279.63 miles

Fuel Amount: 68.13 liters :18 US gallons : 14.99 Imperial gallons

Fuel Economy:15.14 liters per 100 km : 15.54 miles per US gallon :18.65 miles per Imperial gallon

Its about what I average on a tank of premium gas. All i know is that when i hit around 400 km on the odometer i better start seriously looking for a gas station.

What do you drive? 18 gallons (US) is way too high for a celica.

Your mileage seems about right. My average appears to be around 27 total. I would say about 70 percent of my driving is freeway.