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Wow!

BassBomb

BassBomb

Diamond Member
Took the ES350 for a trip last night (100km)

Dash readout said I got 6.7 L/100km --> 35MPG!?!?! wtf

Speeds ranging from 80 to 100km/h small highways

And here my Accord has been busting my balls with 25MPG, 100% City driving (4cyl)

The ES350 typically gets us around 25 MPG with 60% city 40% highway
 
Once I am back at school it will be 160km round trips in the Accord 90% Highway @ 120-130km/h

I was getting 32 MPG in Nov in those conditions 38 if I drove 100 (speed limit)

We will see what goes on then 😉. I kindof miss my Civic though for in city driving
 
Originally posted by: F1N3ST
Take that ES350 through some city driving :'( = poor you.
Click to expand...

I'd like to take it to work daily sometimes while I have the chance (family in Europe). But the gas is premium and it wouldn't be worth it. I work about 5km away so the car wouldn't even warm up in time.

ES has only 16000km on it so far Accord 77000km (bought used)
 
80-100km (closer to 80km) will get return you some of the best mileage your car can get. City driving sucks up gas though, which is why hybrids do so much better when a majority of driving is in the city (mostly the electric motor will work).
 
Originally posted by: Skoorb
Yeah I think about 45-50 mph is the absolute peak of mpg for an automobile.
Click to expand...

Depends on the car. I tried a lot of different speeds in my Corvette as a project for class and 68mph was the best for it. It depends on gearing, fueling, the motors peak efficiency, the drag coefficient... etc.
 
Originally posted by: crazySOB297
Originally posted by: Skoorb
Yeah I think about 45-50 mph is the absolute peak of mpg for an automobile.
Click to expand...

Depends on the car. I tried a lot of different speeds in my Corvette as a project for class and 68mph was the best for it. It depends on gearing, fueling, the motors peak efficiency, the drag coefficient... etc.
Click to expand...

My GTO was the same way. I had to drive around 60-65mph to get the best mileage. Under that and the gearing had either too many rpms or the car dogged to the point where you had to use too much gas.

As far as city vs highway, my CTS is the best example of the discrepancy especially with AWD. I'm lucky to get 17mpg driving to work and back around Atlanta. On long trips, I can easily get 28mpg+ which was even better than a friends '02 CTS.
 
on my VW passat, the dash readout lies, so always measure by odomoter and refill.

dash reads: 38-39 mpg
observed: 33-34 mpg
 
on flat highways, at moderate speeds (50-60mph) my v6 accord once got 34mpg.

my foot was steady as hell for the entire tank and i didn't notice many inclines on the highway.
my car WAS loaded with 3 adults + a trunk full of luggage (about 150lbs worth)

i regularly get 23mpg in NYC city driving. (think massive traffic everyday and stop and go traffic lights every 100 feet)
 
No way to know if the dash readout is accurate.

The odometer and fill-up method can give you something to compare, but it's not very accurate either.

You'd have to put your own calibrated flow meter on the fuel line to be sure.
 
Originally posted by: KentState
Originally posted by: crazySOB297
Originally posted by: Skoorb
Yeah I think about 45-50 mph is the absolute peak of mpg for an automobile.
Click to expand...

Depends on the car. I tried a lot of different speeds in my Corvette as a project for class and 68mph was the best for it. It depends on gearing, fueling, the motors peak efficiency, the drag coefficient... etc.
Click to expand...

My GTO was the same way. I had to drive around 60-65mph to get the best mileage. Under that and the gearing had either too many rpms or the car dogged to the point where you had to use too much gas.

As far as city vs highway, my CTS is the best example of the discrepancy especially with AWD. I'm lucky to get 17mpg driving to work and back around Atlanta. On long trips, I can easily get 28mpg+ which was even better than a friends '02 CTS.
Click to expand...

Similar experience with my Saab (9-3 Aero 08). I get 15-16 in the city and up to 30 on the highway. 6th gear, turbo, appropriate speed, and the thing nets some good gas mileage. Anything else and it's expensive!
 
Originally posted by: LTC8K6
No way to know if the dash readout is accurate.

The odometer and fill-up method can give you something to compare, but it's not very accurate either.

You'd have to put your own calibrated flow meter on the fuel line to be sure.
Click to expand...

Depends what you're looking for. It's pretty darn accurate if you're just measuring average MPG. (As accurate as your odo & gas pump, at least.)

 
Odo and fillup method is only accurate over several tankfuls averaged. Say 3 or 4 with the total gallons and total miles numbers. A one time test is not going to be accurate.
 
Originally posted by: LTC8K6
Odo and fillup method is only accurate over several tankfuls averaged. Say 3 or 4 with the total gallons and total miles numbers. A one time test is not going to be accurate.
Click to expand...

The dash readout on the Lexus is very accurate. I believe this because most of the time when it gets mid 9's L/100km it has been true.

 
Originally posted by: crazySOB297
Originally posted by: Skoorb
Yeah I think about 45-50 mph is the absolute peak of mpg for an automobile.
Click to expand...

Depends on the car. I tried a lot of different speeds in my Corvette as a project for class and 68mph was the best for it. It depends on gearing, fueling, the motors peak efficiency, the drag coefficient... etc.
Click to expand...

My Jeep peaks around 60-62mph. However, it gets better mileage at 80mph than 75mph. Must lean out a little.
 
Originally posted by: Skoorb
Yeah I think about 45-50 mph is the absolute peak of mpg for an automobile.
Click to expand...

There is a sweet spot for every vehicle. My Impala (3.4L) actually does best at around 58MPH. The Bonneville it replaced (3.8L) did best in the upper 40s
 
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