i have noticed a difference in gas mileage between ethanol and 87 on every vehicle i have tryed both in. My dad is the same way, if he puts ethanol blend in my old civic it gets around 29-31mpg with going to and from work, when he uses 87 it gets between 33-35mpg. My truck was the same way, it got about 1-2mpg less with ethanol **** than regualr, but it was a truck so i didn't really care and just kept puting ethanol in it. The piece of **** blazer on highway only trips gets about 19 on 10% and 21-22 on regular. I have tryed it on every vehicle i have owned (besides the 2 mustangs) and its always the same, even on the same stretch of road driving the same way. **** ethanol

 

****, in Louisiana, premium is about $3.60 a gallon. ****** oil tycoons gettin rich off my ass

 

ya im gettin there we're at 1.28 usually now for regular..premium i filled up 2 days ago...1.32 for 92.. 1.35 for 94...where do you live ? im in vancouver and they said its supposed to get to like 1.50$ in the summer or w/e for regular i think it was? so that means like 168 or w/e for 92

 

Perhaps they mistook ethanol and put water in instead. That is really odd since it is designed to virtually make no difference in power and MPG. There are too many factors involved with obtaining MPG, let alone measuring it.

Just how are you doing your measurements? Here is a clip from this thread:

https://www.cobaltss.net/forums/2-2l-l61-performance-tech-45/best-mods-mpg-105888/

that will explain how I obtain my MPG.

I get 35-37 highway and 25-27 city.

I'll explain my method.

I don't go by how many miles I go by with a full tank to E. #1 I never want to run the bottom of the tank to my engine, shouldn't need to explain that and #2 all pumps will fill at different points, so actually knowing how much fuel you have is nothing but guess work. So no accuracy there. I also don't do the fill up and stop at 1/2 as the gauge itself is never truly right on.

For highway, I have a nice 160 stretch I have to travel often without stops and with speeds variating 50, 55, and 65. The terrain is both smooth and bumpy here and there from needed construction and has a few slight grades. I'll reset the MPG counter on the DIC and run it for 100 miles 1 way record the computer's average, and then redo this process on the way back for another 100 miles, record the average. So at this point I'll have two MPG averages from two 100 mile highway trips. I'll then take the average for those two to figure my highway MPG.

For city I try to use a similar system of a 25 mile commute that will take into account many red lights, stop and go (mostly at night), 25-40 mph zones and even more hills and grades than highway. Again I take the average of two separate trips coming from opposite directions at different times of the day.

I want to hear how these 40+ MPG people get their figures. Yes if your going 50MPH slightly downhill with the foot barely on the accelerator and you reset the MPG counter, then yeah you'll see something like that, but it is not accurate. It'd be accurate if all roads were downhill, 50 MPH, there was no traffic at any time. We know that's impossible. Travel 65 MPH a few miles up a steep mountain cliff slowing down and speeding up to accommodate moderately busy traffic traffic, the computer will not say 40. But hey, let's see, maybe someone will prove me wrong?

____________________________

Also, yes Shell does have the additives / detergents for your engine, but you are supporting middle eastern oil dependancy at the same time. Not all top tier gas is middle eastern. So you do have the choice to use alternatives that are still Top Tier grade, which is the best gas, supposedly. And I chose not to support our middle eastern dependancy. However, a lot of members on here as well as in the nation continue to support it.

 

Nope, if you put 89 in a 2.2, it will sputter and then die. Then you will have to have the entire fuel system flushed before it will work again. Thats why the manual tells you to use 87.













I am only joking if you don't get it.

 

I still think the floorboard will fallout and green bolts and washers will bounce around.

 

Shooooot.... $3.60 for Premium??? Your lucky! Here in Cali I cant even get Regular for anything cheaper than $3.75. In fact I just saw $4.05 on my way home today... for Regular! And at least 10 cents more for premium.

 

Whats wrong with shell?

 

yupp here in ohio its been sitting right at $3.49 for 87 the past week or so now........

 

i have not posted on here before but please dont flag me as being full of ****. I am an engineer (diploma) and work for a major oil company's refinery in the blending area.

87 will not hurt any modern vehicle... higher performance vehicles computers will automatically retard the motor (no pinging like on older high performance cars) your mileage and power will go to crap with it. in a vehicle tuned to 87 like our n/a cobalts it will do the trick just fine. Unless you have had your car tuned for higher octane (basically advancing the timing) the only advantage of running midgrade or premium is slightly better mileage due to its higher energy content, here in canada it will not offset its cost. Premium also only uses feeds that leave zero residue when burned correctly. Those pictures of the black carbony valves have truth to them. Suplus 94 could run on an engine for years with zero carbon buildup. 91, 89 and 87 are all blends of a different feed that is much more prevalent in crude, and have additives added to reduce the carbon buildup such as techron or tactrol. If you run valve cleaner every few months your engine can be maintained the same as running pure supreme plus 94.


well heres my scoop... first of all in my 08 LT 2.2l 5 speed if i am going less then 90km i manage 6l/100km this is going straight with the cruise control on. 100-110 km will do 7l/100k 120km/h (70mph) bounces between 8 and 9 l/100km. this is running canadian 87 octane chevron or petro canada fuel... non ethanol straight gas.

I have never tried ethanol in my cobalt for a reason. In my old celica i tried it and it signifigantly hurt my mileage and power ( that car ran 12-1 compression and webber carbs and was a vintage race car)

A third thing about ethanol is that it is water soluable... ie it ubsorbs water and will not let it out, if you think you will get dry ethanol you are kidding yourself, so consider 1-5% of the ethanol fuel you buy to be water. Ethanol is also abrasive to fuel systems and lines. Most new vehicles are built to counter this but why put on more wear then you have to. Here in canada petro canada and chevron are the two gas stations where you will not find ethanol in your fuel. Shell you may or may not and husky and mowhawk are filled with ethanol. The unfortunate thing is in 2010 all fuel in canada will have at least 10% ethanol so there will be no escaping it. I work in an oil refinery and we are in the process of building a new ethanol blending plant. nobody is happy about it and its worse for the environment with its poor energy balance and energy needed to create it.

 

Great job reviving a thread from 6 months ago, what a way to make your first post.

Still, welcome to

 

WHAT ARE YOU GUYS TALKING ABOUT!

If he puts mid-grade in a low-grade intended engine, it's gonnna bLLLLLOOOOWWW!!!

:

 

everything will be fine...run my car on ONLY shell vpower or chevron w/ tech

 

Midgrade could get you better MPG cause it burns cleaner. I actually i have ran both 87-89 in my jeep liberty and my jeep got better MPG on 89

 

all octane rating means is rate of burn, the higher the number, the slower the burn. you can run 93 in a lawn mower if you want, doesnt matter, you can go up in rating, just not down. if you run 87 in a 93 car, you may experience detonation, aka spark knock, which isnt good, but wont hurt your engine(for a short time), it can lead to hot spots on pistons and eventually failure of a component.

 

Guys, this thread is 6 months old, this guy doesn't care abou this anymore..........

 

I only burn pure sweet crude from oil fields in the Alaskan wilderness that is carried out by hand by Inuit women with seal slippers and polar bear coats, with Techron.

 

yessssssssssss!!!!!!!!!!!!!!!!