Gas Premium or regular?

[fistpoint]

Originally Posted by usptwins

Then they shouldn't have bought the car...

Originally Posted by blackraven1425

...or, you shouldn't make arbitrary, simplistic criteria to judge someone's financial worthiness to have this car.

Sorry, but he's right. Who the hell can justify a $25000 car but not a few extra dollars a week on the proper fuel? No, that simply does not compute with anyone who knows how to spend their money properly, yes I said properly.

Does the economic condition of this country completely escape you? Do you think it was sound financial decisions that put us here?

Holy shit.

[Miss_Red]

The tank on the FR-S is rather small (hell, it's 11.5gal vs. 22gal on my Altima.)

Quit being cheap and fill the tank properly man..

[Draco-REX]

Originally Posted by blackraven1425

It's significant if you're talking about it over the course of owning the car. 25mpg is probably about average, with 12,000 miles per year, you're talking about 480 gallons of gas. That translates to $240 per year extra in gas at 50 cents extra for premium, which is the norm near me. Over, say, 4 years, it's about 1k.

Not a big deal for most people, but there's probably at least a few FR-S owners who can't just eat that without cutting something else back.

Up to you. Personally, I think $5 per fill-up (if your area has such a huge markup on premium, mine doesn't) is worth it for my engine to run at its peak performance, and maximum longevity. If it's that much of a financial strain, then cutting just $1 per lunch will cover that easily. Though if $5 per fill up is an issue, you're going to have trouble maintaining this car too.

[Draco-REX]

Originally Posted by Chad

Hmmm I just had the impression that ethanol is hard on small engines because it can turn into a powder-like substance?

That's a new one for me. Ethanol is literally the alcohol you drink. No fancy chemicals. If you're feeling especially baller, you can get an E85 tune and run your car on moonshine (make sure it's the good stuff at 160+ proof).

The big issue is that Ethanol will dissolve rubber and corrode some metals. The good news is that because nearly all pump gas has a minimum of 10% Ethanol, new cars use fuel systems hardened against Ethanol. So there's no issue with our cars.

I can only think the "powder" could be one of two things. One, it could be residue from corroded parts when used in an older system susceptible to Ethanol's issues. Or Two, they were running E85 without a proper tune and ran the car lean which will leave behind white buildup.

I'm thinking more of the second. Just pouring in E85 and fattening up the Injector Duty Cycles (IDCs) on a stock petrol car is not enough. Running E85 requires around 30% more fuel and *most* car fuel systems can't ramp up that much. (We can because we have twice as many injectors as normal and each set are big enough to run the car. But we're an exception.)

[Draco-REX]

Triple!

Originally Posted by Miss_Red

The tank on the FR-S is rather small (hell, it's 11.5gal vs. 22gal on my Altima.)

Quit being cheap and fill the tank properly man..

Just to nitpick, we have a 13gal tank. The light turns on at 3 gallons left. I confirmed this when I filled up 12.42gal once (the needle was WAY below the E line).

[Entroper]

It already pings at low rpm with 93 octane. I wouldn't dare put 87 in it.

[Lonewolf]

If you fill the car up with 87 I will personally beat you with a banana...

[bdub85]

Originally Posted by Draco-REX

That's a new one for me. Ethanol is literally the alcohol you drink. No fancy chemicals. If you're feeling especially baller, you can get an E85 tune and run your car on moonshine (make sure it's the good stuff at 160+ proof).

The big issue is that Ethanol will dissolve rubber and corrode some metals. The good news is that because nearly all pump gas has a minimum of 10% Ethanol, new cars use fuel systems hardened against Ethanol. So there's no issue with our cars.

I can only think the "powder" could be one of two things. One, it could be residue from corroded parts when used in an older system susceptible to Ethanol's issues. Or Two, they were running E85 without a proper tune and ran the car lean which will leave behind white buildup.

I'm thinking more of the second. Just pouring in E85 and fattening up the Injector Duty Cycles (IDCs) on a stock petrol car is not enough. Running E85 requires around 30% more fuel and *most* car fuel systems can't ramp up that much. (We can because we have twice as many injectors as normal and each set are big enough to run the car. But we're an exception.)

Yeah, I've never heard of any issues with e85 turning into powder. I come from the Evo world where a ton of people were running straight e85 in their cars. The only really drawback to running e85 is the cost since you have to upgrade your fuel system and the fact that your milage will take a dip with ethanol. E85 is amazing for power especially in boosted cars because the high octane rating allows you to run more boost and timing.

[Miss_Red]

Originally Posted by Draco-REX

Triple!


Just to nitpick, we have a 13gal tank. The light turns on at 3 gallons left. I confirmed this when I filled up 12.42gal once (the needle was WAY below the E line).

I was under the impression it was 11.5 (via the manual) I haven't risked running on empty as if yet (I don't plan to either.)

Have yet to fill more than $35 on my Escher (93 octane. Flying J fuel, only stuff I trust locally. Chevron with Techron is unavailable here and the fuel I only used in Houston. Cheap fuel killed my intake once.) Granted the fuel us a little pricier than unleaded; but sure beats filling up an SUV anyday.

[Draco-REX]

Originally Posted by bdub85

Yeah, I've never heard of any issues with e85 turning into powder. I come from the Evo world where a ton of people were running straight e85 in their cars. The only really drawback to running e85 is the cost since you have to upgrade your fuel system and the fact that your milage will take a dip with ethanol. E85 is amazing for power especially in boosted cars because the high octane rating allows you to run more boost and timing.

In addition to a 105 - 110 octane rating, the fact that it's alcohol means that when it is injected, it absorbs a lot of heat from the intake charge. This lowers the chance of detonation as well, much better than water injection.

[campy]

I bet they don't have arguments about buying 93 octane over at Porsche and Ferrari boards

[Allch Chcar]

Originally Posted by campy

I bet they don't have arguments about buying 93 octane over at Porsche and Ferrari boards

How much you want to bet they bicker about 10% Ethanol vs Pure gas though?

[carma143]

I once brought my Dad to the gas station on the way back from Costco and he was yelling about the idiosy of the BRZ needing premium gas. One tank of 85 octane won't kill the car, right fellas?

[xRavenFRSx]

Originally Posted by carma143

I once brought my Dad to the gas station on the way back from Costco and he was yelling about the idiosy of the BRZ needing premium gas. One tank of 85 octane won't kill the car, right fellas?

It wont kill the car or do any noticeable damage, but the car was designed and tuned by very smart people to run on 91+. Speaking for myself, id prefer my car to perform and operate properly using the fuel its currently tuned and designed for.


Nevermind ignore what I said below, I read your last sentence like you were supporting the use of regular gas and was just looking for support behind that statement from previous posters in the thread.

Oh and its been a year and half since the last post, not sure if you were just reviving the thread or expecting a response from previous posters.