Worst fuel economy after installing F Sport Exhaust?
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I changed my stock exhaust to the F Sport exhaust on my 2014 IS250 AWD back in November and ever since then, I've been getting significantly less fuel economy after that. I used to average around 7 mpg and now it is 8 or worst.
Noticed the fuel consumption bars go to max during start up and when I am stopped at a light / idle. Once the car is warmed up after 10 or 15 minutes of driving (Its winter here in Toronto), the fuel economy feels better.
Anyone else experience this?
Noticed the fuel consumption bars go to max during start up and when I am stopped at a light / idle. Once the car is warmed up after 10 or 15 minutes of driving (Its winter here in Toronto), the fuel economy feels better.
Anyone else experience this?
#2
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I'll be the first to say..... 7mpg? I think you have a unit conversion issue here because the only way you get 7mpg is you either drive no distance to work, or you have a V12 engine lol
Also, you say it got worse, but "increased" from 7 to 8mpg hahaha
To go from L/km to mpg, go here:
http://calculator-converter.com/l_10...per_100_km.php
Ok, joking aside, and axle back exhaust isn't going to do anything to your gas mileage. Ever.
You installed it in November, do you know what else happens in November? Cold weather. Do you know what happens in cold weather? mileage drop.
You're drawing silly conclusions, drive your car.
Also, you say it got worse, but "increased" from 7 to 8mpg hahaha
To go from L/km to mpg, go here:
http://calculator-converter.com/l_10...per_100_km.php
Ok, joking aside, and axle back exhaust isn't going to do anything to your gas mileage. Ever.
You installed it in November, do you know what else happens in November? Cold weather. Do you know what happens in cold weather? mileage drop.
You're drawing silly conclusions, drive your car.
Last edited by Swacer; 01-25-16 at 11:55 AM.
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I guess cold weather could be it. I hope so. I do enjoy the new exhaust. I used to get 11 litre per km (no more silly conversion) and now its high 13s. I've had drops in efficiency in my old car but not 20% worst. Driving happen hasn't changed. I guess I'll keep an eye out but I am curious if anyone else has experience this.
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I guess cold weather could be it. I hope so. I do enjoy the new exhaust. I used to get 11 litre per km (no more silly conversion) and now its high 13s. I've had drops in efficiency in my old car but not 20% worst. Driving happen hasn't changed. I guess I'll keep an eye out but I am curious if anyone else has experience this.
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I changed my stock exhaust to the F Sport exhaust on my 2014 IS250 AWD back in November and ever since then, I've been getting significantly less fuel economy after that. I used to average around 7 mpg and now it is 8 or worst.
Noticed the fuel consumption bars go to max during start up and when I am stopped at a light / idle. Once the car is warmed up after 10 or 15 minutes of driving (Its winter here in Toronto), the fuel economy feels better.
Anyone else experience this?
Noticed the fuel consumption bars go to max during start up and when I am stopped at a light / idle. Once the car is warmed up after 10 or 15 minutes of driving (Its winter here in Toronto), the fuel economy feels better.
Anyone else experience this?
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#8
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My car needs after install more. Because i drove like crazy.....and still after 6 month i dont come under 10l (in town)
During winter 0,5-0,7l more. Right now it's 11,7-12,3l and with a full filling the range is about 520km
During winter 0,5-0,7l more. Right now it's 11,7-12,3l and with a full filling the range is about 520km
Last edited by Slplknight; 01-26-16 at 02:09 AM. Reason: The small L (l) stands for Liter. Common is L/100km
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Could you tell us the numbers in L / 100 km?
Also, if you are doing the conversion to MPG, make sure you the right one and specify which MPG (US MPG / Imperial MPG), otherwise it will confuse members.
It could also be the fact that the gas stations are still using winter gas, therefore your gas would burn faster. Wait until they switch back to their summer blend, you will notice the difference.
Also, if you are doing the conversion to MPG, make sure you the right one and specify which MPG (US MPG / Imperial MPG), otherwise it will confuse members.
It could also be the fact that the gas stations are still using winter gas, therefore your gas would burn faster. Wait until they switch back to their summer blend, you will notice the difference.
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#13
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Could you tell us the numbers in L / 100 km?
Also, if you are doing the conversion to MPG, make sure you the right one and specify which MPG (US MPG / Imperial MPG), otherwise it will confuse members.
It could also be the fact that the gas stations are still using winter gas, therefore your gas would burn faster. Wait until they switch back to their summer blend, you will notice the difference.
Also, if you are doing the conversion to MPG, make sure you the right one and specify which MPG (US MPG / Imperial MPG), otherwise it will confuse members.
It could also be the fact that the gas stations are still using winter gas, therefore your gas would burn faster. Wait until they switch back to their summer blend, you will notice the difference.
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Sorry for the conversion issues. I will just reference it based on liters.
LOL I wish that was the case. The car just needs a slightly heavier foot to get going now but by no means and I flooring it.
Based on my current tank of gas, I will get about 460 km. Current L per 100 km is 13.7. I don't idle my car at all.
The fuel economy is especially bad when my car has been sitting for a while. For the first 5 mins, the fuel consumption bars are maxed no matter what speed I am driving at (usually around 50 kph since I am getting out of a residential area) .
The fuel economy gets better once the car is fully warmed up which wasn't the case prior to the exhaust install.
Based on my current tank of gas, I will get about 460 km. Current L per 100 km is 13.7. I don't idle my car at all.
The fuel economy is especially bad when my car has been sitting for a while. For the first 5 mins, the fuel consumption bars are maxed no matter what speed I am driving at (usually around 50 kph since I am getting out of a residential area) .
The fuel economy gets better once the car is fully warmed up which wasn't the case prior to the exhaust install.
#15
Lexus Test Driver
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Honestly, just drive your car. Everything you have said is just silly.
My fuel economy has been bad when the car has been sitting for a while. Well no ******, its burning gas and not moving.
When you start, the car starts in open loop because its not warm, so yes, its inefficient. Of course the gas mileage gets better as the car gets warm, tis in closed loop tuning and at its most efficient point. This happens to EVERY car.
This is normal, the car is fine, I beg you to stop and just drive the car.
Does anyone have that meme that shows, "I got my tires changed, now my heat doesn't work" for people who connect things that don't make sense?
My fuel economy has been bad when the car has been sitting for a while. Well no ******, its burning gas and not moving.
When you start, the car starts in open loop because its not warm, so yes, its inefficient. Of course the gas mileage gets better as the car gets warm, tis in closed loop tuning and at its most efficient point. This happens to EVERY car.
This is normal, the car is fine, I beg you to stop and just drive the car.
Does anyone have that meme that shows, "I got my tires changed, now my heat doesn't work" for people who connect things that don't make sense?
Last edited by Swacer; 01-26-16 at 06:58 AM.