Shhhhh, We're out of premium

[C586]

Originally Posted by ebaugh1990

I hear ya, yeah I think there has to be a good reason why Sunoco is sponsored in NASCAR lol

I could care less where it's used. It gets me the best mpg and won't knock in my turbo cars. Sunoco 93 is way different than Delta sonic or Valero 93. The more expensive stuff they use is higher or something. Idk everything there is to know about mixing fuels but I know Sunoco is a much better fuel than Valero.

[C586]

Originally Posted by SlingShot

There are two different types of pumps used. There is a straight metering pump and a blend metering pump. The pumps with a different nozzle for each octane is a straight meter pump. With a straight meter pump the tanks are filled with each octane sold. On a blend meter pump there is one nozzle with multiple octane selection buttons. The tanks are filled with the lowest and highest octane being sold. If you select either the low or high octane the pump will meter straight. If you select a mid grade the pump will pull from both tanks and blend the octane you selected.

The OP has nothing to worry about, he got the octane he selected.

Not true. Ill take you to 2 different stations that mix ratings yet have different hoses. They have 2 tanks but 3 different octane rating hoses.

[JohnnyBfromPeoria]

Originally Posted by C586

They have 2 tanks but 3 different octane rating hoses.

Correct, as far as the Phoenix, AZ market goes, although there are a lot of blend pumps (one nozz) here as well.

87 in one, 91 in the other, mix for 89.

John B.

[JohnnyBfromPeoria]

Originally Posted by C586

Ethanol. The more ethanol the more the fuel is watered down. I thought this was common knowledge??

Common knowledge ain't too common, I suppose. They didn't used to use the corn squeezins back in my day. People used to refer to water as "water."

John B.

[daveyio87]

"The fuse pull" is the fastest way to reset the trim tables. But the computer monitors short term trim and long term trim, which means its always calculating the atf ratio and will self adjust over time.

[C586]

Originally Posted by JohnnyBfromPeoria

Common knowledge ain't too common, I suppose. They didn't used to use the corn squeezins back in my day. People used to refer to water as "water."

John B.

Ok. So gasoline is diluted with ethanol. It's a term not a exact statement. Sorry, I thought most people knew why modern fuel is complete garbage. If you buy a small engine or 2 stroke engine now they void the warranty if you run anything but ethanol free fuel or use a additive that makes ethical evaporate or something. Idk how it works but it does. A station near me is getting ethanol free 93 this summer. Hopefully I can turn the boost up a pound or 2 and see what happens.

[OzzySS]

Originally Posted by San2cci

For anyone NJ, PA, VA, Fl residents with Wawa gas stations near them; they have great gas. They are actually higher grades then what they advertise...so use there gas if you are able too. Plus, they would never pull a stunt like this!

I suggest not using corner gas stations too because around my way they have been caught watering down there gas.

I miss wawa...great price on gas, great coffee, great hoagies

[WheelmanSS]

Originally Posted by tonyko1

The fuse pull thing is this website's urban legend myth. It is the classic placebo test case.

I did the fuse pull 2x, once when I first read about it and figured the dlr filled it with regular. I didn't detect any difference. So I purposely ran 87 through 3 tankfuls. By middle of the 2nd tank I could tell a difference in performance. So then I went back to 91 octane on the first fill up, then 92 for the next two fillups. Car went back to normal "bad ass" performance.

There is a very long string about how the fuse routing shows that the 5 20 fuse pull doesn't work. I only did a year of electronics and can't read schematics anymore, so I took it to a genuine Electrical Engineer who knows nothing of this ongoing debate. But he could say without doubt that the schematics and hence the routing of the electric current wouldn't matter "squat" if you pulled said fuses, for a moment or overnight which is the current buzz on this myth.

But hey, if it makes you feel the car drives better, then, better. But consider this: If you are putting 91 octane in your car for a while, and then you start putting in 93, do you need to again do another fuse pull?....

Sorry, I can't resist the art of rhetoric.....and I am leaving this door open for you. I aint responding back to your rants because of my 2 week ban "For crapping on the thread" by the guy with the smoking monkey.

Best, and peace out.

If it makes you feel any better, i COMPLETELY agree with you.

[Stex]

Originally Posted by Chevyman2

When did Valero become top tier distributor?

Agree, off topic but OP may want to reconsider where he buys gas. I use Valero only in exteme cases and then only a few gallons just to reach a Chevron, Texaco or shell.

http://www.toptiergas.com/retailers.html

[Rob3D]

I also agree with the OP. The point is valid. When I buy a Pepsi I sure as hell don't want a Coke, and when Taco Bell runs out of Mountain Dew they don't start pumping Sprite. another point....It's against the law to supply anything other than premium through the premium pump...I'd bet they didn't get premium in the last delivery and someone just put the sign out before they actually ran out... IMHO.

On a semi related note: I hate the one nozzle for for all grades pumps. I know it's nit-picky, but hear me out. If the person before me pumps low grade, when I go to pump high grade I'm getting a hose full of low grade. It's really not a substantial amount, but I'm paying for premium and my first quart or two is low grade. Furthurmore, if the person after me pumps low grade they are getting some premium for free that I paid for.

Before you make the argument that it oesn't matter that much, I pose this question....why don't they run diesel thru the one nozzle pumps?

[davidcroft]

Originally Posted by SS11

Stopped to get gas at my local Valero this morning. Went in since I had to get a couple other things and prepaid for the gas. While pumping (premium of course) I notice a post-it on the pump near the card swiper that they are out of premium. What the hell is pumping through the premium nozzle then? By the time I noticed the tank was nearly full. I went in and told them they should have bags on the premium nozzles and need much bigger signs. They asked if I wanted the $1.30 difference in price refunded. I told them that wasn't the point but stopped short of explaining why since I figured they really didn't care anyway.

Guess I get to try the fuse pull after this tank but really it's quite a shame that a $40k car is permanently degraded performance-wise by running 87 octane just once without knowing the little fuse pull trick.

Come on GM. How hard can it be to automatically set the timing tables back to normal after a certain period of time or certain number of miles?

And how the hell is it legal to pump 87 through a 91 pump? </rant>

WHO PUTS VALERO IN A 40k CAR???
It's not GM's fault. It actually protects the engine.

FYI not the first I heard about this from Valero. I know someone who did that in a ZL1....which already had a 93 octane tune

[San2cci]

Originally Posted by OzzySS

I miss wawa...great price on gas, great coffee, great hoagies

Right now, any size coffee is $1...cant beat it

[SlingShot]

Originally Posted by Rob3D

Before you make the argument that it oesn't matter that much, I pose this question....why don't they run diesel thru the one nozzle pumps?

Because the nozzle is different in size.

[Rob3D]

Originally Posted by SlingShot

Because the nozzle is different in size.

I know it's bigger, to prevent stupid folk from putting it the gasoline hole. You could pump diesel thru a gas sized nozzle rendering the bigger nozzle point moot.