I really think more people need to see this. People routinely do 75-80 on their way to work, and do not realize the difference not only in safety but their wallets in dropping their speed a bit. Great video!
Hi. Nice content. You are right. There is no hypermiling on a highway. You just drive slow on the first lane. There is no input from the driver in this equation. Real hypermiling is more related to engine break and use of the car’s momentum. Keep it up!
this is EXACTLY the video I have been seeking out. In the market for a 2020 STI, but concerned about a pretty hefty fuel cost over time. Running a 2001 Integra GS-R sedan since 2002 and that thing fuel sips even at 4k rpms and ~80mph (with a bike rack!). I want to drive conservatively on the highway because at those speeds, I don't need every state trooper drooling at the revenue stream from *that guy in the STI.* All that said, hearing that legit conservative driving on long hauls reaps fairly respectable fuel economy is fantastic news.
Glad it was helpful! On this particular drive I was driving very conservatively, but when just sticking at or near the speed limit and not pushing the car it would regularly do between 25-27 mpg, which is above the EPA highway number for the car.
@@CarDietrich That's an acceptable fuel economy return and is typical for the Integra when operated around the speed limit or going with the flow of traffic in a highway scenario. I can't tell you how happy that makes me... I keep on looking @ the 16 - 22mpg EPA rating and i'm thinking 'fxck, I might as well go with a truck or SUV.' The rating process must be running the EJ at a decent RPM and not as a conservative driver might operate the vehicle when looking to be economical v. [safe] fun time on secondary streets.
As far as EPA ratings go in the US, the manufacturers themselves actually run the tests using the EPA's guidelines. Of course, this opens the doors for some cheating (see the Kia Soul from a few years ago), but in my experience Subarus without CVT transmissions (STI of course is a 6-speed manual) tend to outperform their ratings in the real world, especially on the highway. Way back in the day I had a 2010 Impreza 2.5i with a pitiful 4-speed automatic. It was rated 26 MPG highway, but it regularly got 28-29 MPG on the highway without trying. The Subarus I've had with CVTs tend to pretty much do what they say they are going to on the window sticker.
i got 30 mpg (us) in my sti -08 by just following the speed limit to work. 39km from home to work with 30mpg (7,8 L/100km) isnt bad. after reding the forums i thought i wouldnt do better than 9 L/100. quite happy.
@@kk-yy8oi yeah that is what i thought i couldnt do better than bit 7,8L/100km is the best i have done. Now over the Winter months i have had it in the 11L/100km. Bit of intake it easy and drive quite normal and just a bit over Speed limit i get like 8,6.not too bad. Butbvould be better.
@@mackan98502 thank you so so much .. I love in Canada so is all go by how many L per 100km. I am getting my sti next week but often heard ppl saying the gas mileage is very bad and even the site said 14L per 100km... The car I'm driving now is Hyundai Santa Fe .. I think it is 9 or 10L per 100km which I am very satisfied and each tank last me about 2 and a half week... With all the ppl saying about the gas on sti, I'm starting to worry .. but I'm not a heavy driver and won't step hard on gas and just normal driving .. if it is like 11L per 100km .. I'm very pleased and happy .. only providing I have to feed with octane 91 and that is good enough right?... Thanks again
@@kk-yy8oi just remember to use the "i" mode it is basicly the Eco mode. I thinks you Will be happy. Bit remember that of you are in sport mode it Will consume allt of you put tour foto down to the floor.
@@mackan98502 yes I will keep in intelligent mode for sure .. so if I do that .. I should probably able to do like 10L per 100km like my car now right?
Great video brother, I like your boring driving expression at 10:10 I was LMAO. Sti have really bad reputation with MPG for 4 Cylinder, but after watching your it really depends on how you drive it. Thanks man.
You're welcome thank you for watching! I actually did the same drive a few days ago in the 2020 Impreza I replaced my STI with and I thought about doing the same thing to see what the maximum MPG I could get out of that car would be, but I just couldn't face the boredom
I get 7.4 l/km im in canada (31.79mpg) with my 2018 sti with shell 91 vpower, county road trips of an hour with stop signs different speeds different towns etc. my speed was 86 kmh keep it under 3k rpm..out of boost. this was still driving with some spirit... over all driving city and and highway mixed through Toronto and driving on highway of 120 kmh speed my overall average is 10.4 l/km (22.62mpg) throughout 58,000 km on the odometer. i get great fuel economy.. i listen to others complain about terrible economy. the must beat the piss out of it. i drive spiritedly and have no complaints.
4,6-4,7l/100km with a heavily modified Boxer Diesel Impreza MY10, 195HP. The problem: highway speeds of about 85km/h with even the 5th gear only (out of 6...) But with regular driving i am in the range of 5,8-6,5l/100km, including a lot of fast cornering and acceleration, so fun. Best thing about the tuning (DPF off/removed, EGR off, Eco mapping with little bit more boost and fuel): Before the tuning i had like 5,8 (at absolute best) to 7,5l/100 km, the tuning reduced the consumption a lot, i can drive something like 100km further with a full tank compared to stock 750km at best...
Thanks for this information. I always wished Subaru had brought the Boxer Diesel over here to the USA. There was talk around 2008-2009 that they were going to but the never did :( I totally would have bought one.
I've seen some data spring that the STi wing is actually very well placed and doesn't add much drag, but I'd agree that taking it off may actually help
Drove Vancouver, WA to Sherwood, OR, in my ‘17 WRX (not sti), 92 Octane Chevron, got 31.5 mpg going up there with traffic and some bottlenecks at 4pm, 35mpg driving home. This is over terrain too! Oh, averaged 65-70mph. I was shocked!! Yes, I stayed out of boost, no fun I know. But for a road trip to get to the twisty roads of eastern Oregon I like, and save some gas, not bad.
I was pretty much right at 55 or so the whole time, I never went over 60 MPH during that drive. I got some funny looks from people passing me, because you don't normally see STI's riding the slow lane so hard. I even got passed by a couple big rigs lol.
@@CarDietrich interesting. I tried about a 100 mile loop here in Florida at 65 and got 25.2mpg. Maybe it’s the thick humid florida air🤣 I got better mileage in Colorado where the air is thinner.
I have an 07 WRX wagon. Normally was getting 23.2mpg with stock wheels 215/45r17 (24.6" diameter). I'm going to lift it a bit, so I bought used Forester wheel with 215/60r16 (26.2" diameter). Somehow that Forester combo is actually about 1.5lb lighter per wheel. I bumped the tire pressure up to 40psi. Today I hit my best MPG at 27.2mpg with about 10% of my driving being "city" driving. I think a little taller of a tire without going too heavy can get me to 30mpg without going over 60mph for a long trip. Maybe just under that on my normal commute.
I think you'd get a bit more without the wing, but I've seen data showing the wing is so well designed and placed that it doesn't hamper aerodynamics to much
Also the taller tire shows lower miles than I actually go. I use Fuelly to track the data. So technically I should be getting more than is actually recorded
Lease returned it in April 2020, had it for three years, put 37,000 miles on it, never had one single problem. With that being said I never modified it either. Unfortunately no 93 gas available in California, but it never had a problem on 91.
Well its hard to suggest mods for an STI to improve fuel economy. Delete the wing I guess. In general low rolling resistance tires would improve fuel economy on most cars but to the detremint of handling and performance in bad weather. I read an article in a Jeep magazine years ago that suggested zip-tying a one inch square block of wood to the bottom of your gas pedal to improve fuel economy, the theory being you'll never be able to engage full throttle. I'm not actually suggesting that because there are traffic situations when you might NEED full throttle, but that is one of those little things I read once twenty or so years ago and stuck in my mind ever since. I am not an expert hypermiler, I just did this to see if it could be done. Honestly if you want better gas mileage just drive a little slower. It works every time.
![My Subaru WRX's Average Gas Mileage After Two Years [Stock vs Tuned]](http://i.ytimg.com/vi/26vhifLV8E4/mqdefault.jpg)
Not the hero we asked for, but the hero we deserved 🤧 thank you for your service
I do my best.
@@CarDietrich could you do a similar drive going 70 mph?
@@jonathanb1987 I could but I doubt I would make it in one tank.
I really think more people need to see this. People routinely do 75-80 on their way to work, and do not realize the difference not only in safety but their wallets in dropping their speed a bit. Great video!
Thank you for watching!
I salute the effort, thank you very much for it 🙏👍
Hi. Nice content. You are right. There is no hypermiling on a highway. You just drive slow on the first lane. There is no input from the driver in this equation. Real hypermiling is more related to engine break and use of the car’s momentum. Keep it up!
this is EXACTLY the video I have been seeking out. In the market for a 2020 STI, but concerned about a pretty hefty fuel cost over time. Running a 2001 Integra GS-R sedan since 2002 and that thing fuel sips even at 4k rpms and ~80mph (with a bike rack!). I want to drive conservatively on the highway because at those speeds, I don't need every state trooper drooling at the revenue stream from *that guy in the STI.*
All that said, hearing that legit conservative driving on long hauls reaps fairly respectable fuel economy is fantastic news.
Glad it was helpful! On this particular drive I was driving very conservatively, but when just sticking at or near the speed limit and not pushing the car it would regularly do between 25-27 mpg, which is above the EPA highway number for the car.
@@CarDietrich That's an acceptable fuel economy return and is typical for the Integra when operated around the speed limit or going with the flow of traffic in a highway scenario. I can't tell you how happy that makes me... I keep on looking @ the 16 - 22mpg EPA rating and i'm thinking 'fxck, I might as well go with a truck or SUV.' The rating process must be running the EJ at a decent RPM and not as a conservative driver might operate the vehicle when looking to be economical v. [safe] fun time on secondary streets.
As far as EPA ratings go in the US, the manufacturers themselves actually run the tests using the EPA's guidelines. Of course, this opens the doors for some cheating (see the Kia Soul from a few years ago), but in my experience Subarus without CVT transmissions (STI of course is a 6-speed manual) tend to outperform their ratings in the real world, especially on the highway. Way back in the day I had a 2010 Impreza 2.5i with a pitiful 4-speed automatic. It was rated 26 MPG highway, but it regularly got 28-29 MPG on the highway without trying. The Subarus I've had with CVTs tend to pretty much do what they say they are going to on the window sticker.
i got 30 mpg (us) in my sti -08 by just following the speed limit to work. 39km from home to work with 30mpg (7,8 L/100km) isnt bad. after reding the forums i thought i wouldnt do better than 9 L/100. quite happy.
Is it really that 9L per 100km? ...
@@kk-yy8oi yeah that is what i thought i couldnt do better than bit 7,8L/100km is the best i have done. Now over the Winter months i have had it in the 11L/100km. Bit of intake it easy and drive quite normal and just a bit over Speed limit i get like 8,6.not too bad. Butbvould be better.
@@mackan98502 thank you so so much .. I love in Canada so is all go by how many L per 100km. I am getting my sti next week but often heard ppl saying the gas mileage is very bad and even the site said 14L per 100km... The car I'm driving now is Hyundai Santa Fe .. I think it is 9 or 10L per 100km which I am very satisfied and each tank last me about 2 and a half week... With all the ppl saying about the gas on sti, I'm starting to worry .. but I'm not a heavy driver and won't step hard on gas and just normal driving .. if it is like 11L per 100km .. I'm very pleased and happy .. only providing I have to feed with octane 91 and that is good enough right?... Thanks again
@@kk-yy8oi just remember to use the "i" mode it is basicly the Eco mode. I thinks you Will be happy. Bit remember that of you are in sport mode it Will consume allt of you put tour foto down to the floor.
@@mackan98502 yes I will keep in intelligent mode for sure .. so if I do that .. I should probably able to do like 10L per 100km like my car now right?
Great video brother, I like your boring driving expression at 10:10 I was LMAO. Sti have really bad reputation with MPG for 4 Cylinder, but after watching your it really depends on how you drive it. Thanks man.
You're welcome thank you for watching! I actually did the same drive a few days ago in the 2020 Impreza I replaced my STI with and I thought about doing the same thing to see what the maximum MPG I could get out of that car would be, but I just couldn't face the boredom
thanks for the experiment. I too have the same car as you. Maybe I'll try driving 60mph going to work this week.
Thank you so much for watching!
very helpful. salute and respect.
🫡
I get 7.4 l/km im in canada (31.79mpg) with my 2018 sti with shell 91 vpower, county road trips of an hour with stop signs different speeds different towns etc. my speed was 86 kmh keep it under 3k rpm..out of boost. this was still driving with some spirit... over all driving city and and highway mixed through Toronto and driving on highway of 120 kmh speed my overall average is 10.4 l/km (22.62mpg) throughout 58,000 km on the odometer. i get great fuel economy.. i listen to others complain about terrible economy. the must beat the piss out of it. i drive spiritedly and have no complaints.
Good to know! I want a daily STI but drive 2 hours on the weekends. I was hoping they werent terrible on the hiway
@@jpwilliams5264 after 58k my average s 10.8 km/l which is almost 26 mpg city and hwy
@@stisolo9198 This is perfect. Working on a deal for a 2020 STI limited and have been concerned about poor fuel economy for a near daily use vehicle.
Very nice.
Thank you for watching! That was a looong drive lol but I did it for you
Funniest video I’ve come across on TH-cam in a while
4,6-4,7l/100km with a heavily modified Boxer Diesel Impreza MY10, 195HP.
The problem: highway speeds of about 85km/h with even the 5th gear only (out of 6...)
But with regular driving i am in the range of 5,8-6,5l/100km, including a lot of fast cornering and acceleration, so fun.
Best thing about the tuning (DPF off/removed, EGR off, Eco mapping with little bit more boost and fuel):
Before the tuning i had like 5,8 (at absolute best) to 7,5l/100 km, the tuning reduced the consumption a lot, i can drive something like 100km further with a full tank compared to stock 750km at best...
Thanks for this information. I always wished Subaru had brought the Boxer Diesel over here to the USA. There was talk around 2008-2009 that they were going to but the never did :( I totally would have bought one.
I can't imagine how lousy it must have been to drive 60mph all the way up i5 like that 😆 _BRAVO, SIR. BRAVO._
NGL it was boooooring
That is actually impressive given the drag induced by the blocky styling & that huge wing on the trunklid.
Thank you! It was really boring though.
I've seen some data spring that the STi wing is actually very well placed and doesn't add much drag, but I'd agree that taking it off may actually help
Drove Vancouver, WA to Sherwood, OR, in my ‘17 WRX (not sti), 92 Octane Chevron, got 31.5 mpg going up there with traffic and some bottlenecks at 4pm, 35mpg driving home. This is over terrain too! Oh, averaged 65-70mph. I was shocked!! Yes, I stayed out of boost, no fun I know. But for a road trip to get to the twisty roads of eastern Oregon I like, and save some gas, not bad.
What speed were you driving? I think I missed that part. My 2019 STI is rated at 22mpg. When I drive 45 in 6th the gauge tells me she gets 45+mpg
I was pretty much right at 55 or so the whole time, I never went over 60 MPH during that drive. I got some funny looks from people passing me, because you don't normally see STI's riding the slow lane so hard. I even got passed by a couple big rigs lol.
I have a 19 WRX STI. I wish Subaru kept the MPG screen that you were using in this video.
I agree! I love that screen, my 2016 Forester XT had it too but none of the new Subarus do.
What’s the mileage on a full tank of gas on subaru sti 2015 intelligent mode
I wonder what cruising at 70 mph would get you.
About 25-26 MPG, I've done that before.
@@CarDietrich I hope I can get that too in my 2019 STI. That is a good trade off from my 2018 WRX.
How many grannies and service vehicles passed you?
All of them
Lol nice what part of Sacramento did you stop by at?
Tahoe Park in the house!
Should turn the defroster off so the ac isn’t running
I was fogging up the windows in there with all my heavy breathing from the excitement.
What was your average speed while doing this? I'm guessing closer to 50 mph not a livable 70 on the highway.
55-60
@@CarDietrich what is your real world 70 mph mpg?
What’s the best you ever got city driving?
Probably 17. I never really measured it purely in the city, but that was not it's strong suit
The reason you got good mileage going down is because on a manual car the ECU has a table for "no fuel on decel".
50moh the whole time?
Closer to 60
@@CarDietrich interesting. I tried about a 100 mile loop here in Florida at 65 and got 25.2mpg. Maybe it’s the thick humid florida air🤣 I got better mileage in Colorado where the air is thinner.
Look at those gas prices 😂😂😂😢😢😢
I have an 07 WRX wagon. Normally was getting 23.2mpg with stock wheels 215/45r17 (24.6" diameter). I'm going to lift it a bit, so I bought used Forester wheel with 215/60r16 (26.2" diameter). Somehow that Forester combo is actually about 1.5lb lighter per wheel. I bumped the tire pressure up to 40psi. Today I hit my best MPG at 27.2mpg with about 10% of my driving being "city" driving. I think a little taller of a tire without going too heavy can get me to 30mpg without going over 60mph for a long trip. Maybe just under that on my normal commute.
I think you'd get a bit more without the wing, but I've seen data showing the wing is so well designed and placed that it doesn't hamper aerodynamics to much
Also the taller tire shows lower miles than I actually go. I use Fuelly to track the data. So technically I should be getting more than is actually recorded
Do you still have it? How reliable has it been? I like filling up with 93 for its anti knock benefits
Lease returned it in April 2020, had it for three years, put 37,000 miles on it, never had one single problem. With that being said I never modified it either. Unfortunately no 93 gas available in California, but it never had a problem on 91.
LOL you probably saved $10 of fuel just by hypermiling . Suck on that Prius owners.
More like $15 based on my calculations! It still wasn't worth it though lol
Still sad for a car with a 4 banger. I used to regularly pull 32-38mpg out of a nissan maxima with a 3 liter 6..
Appreciate your efforts, but not so fun, isn't it?
That was extremely boring I'm not gonna lie. I only did it once lol.
@@CarDietrich Any mods to improve fuel efficiency, will you suggest?
Well its hard to suggest mods for an STI to improve fuel economy. Delete the wing I guess. In general low rolling resistance tires would improve fuel economy on most cars but to the detremint of handling and performance in bad weather. I read an article in a Jeep magazine years ago that suggested zip-tying a one inch square block of wood to the bottom of your gas pedal to improve fuel economy, the theory being you'll never be able to engage full throttle. I'm not actually suggesting that because there are traffic situations when you might NEED full throttle, but that is one of those little things I read once twenty or so years ago and stuck in my mind ever since. I am not an expert hypermiler, I just did this to see if it could be done. Honestly if you want better gas mileage just drive a little slower. It works every time.
@@CarDietrich I think wrx has better gas mileage than sti. Do you agree?
Yes, WRX engine is definitely more fuel efficient and the gearing is not as aggressive either