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Old Apr 20, 2007 | 03:26 PM
  #46  
unowned's Avatar
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From: Bay Area, CA
Originally Posted by evolution_racer
You're saying CA doesn't have 92 because they can't produce enough??? How about up here in Oregon where you can't get better than 92? I don't think there's nearly the amount of luxury cars up here in hippie land. You made that up didn't you
Here you go

You see, when crude oil is refined into gasoline, the refinery doesn't have all that much control over what comes out. Crude oil is full of all kinds of stuff, and a refinery simply separates it, sorting all the iso-this and hepta-that in order of density. The really heavy stuff, like tar, is near the bottom, while the really light stuff, like butane, is near the top.

Somewhere in the upper ranges of the stack are the components of gasoline. There are between 10 and 15 different blend stocks, each with a different octane rating, which are mixed together to make gasoline.

The crude oil being used and little else determine the amount of each blend stock available for mixing. Generally, if you just dump all the blend stocks into a bucket, you end up with something around 88 or 89 octane. If you're selective and only mix the good stuff, you can make 92, 93 or even 95 octane. But once you take out the good stuff, you're left with crap-something like 85 octane. Then you have to leave enough good stuff in the bucket to bring this pee-water up to at least 87 octane. This limits the amount of 95-octane gas you can make. If you make 93-octane premium instead, you use up less of the high-octane stocks, allowing you to make a higher proportion of premium fuel.

In the Midwest, where an extensive customer base of good old boys in pickup trucks consume vast quantities of 87 octane, demand for premium fuel is low enough to make genuine high-octane premium.

In California, however, Lexus-driving executives suck down premium fuel like it's Evian, so 91 was the rule.
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Old Apr 20, 2007 | 03:27 PM
  #47  
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From: usa
Originally Posted by 4 Wheel Slide
ya i base my comment off an intelligent test because it was logged many times, so go screw urself on that one captain.

and about the guy whose motor failed was probably tuned for 93, never saw that thread. I dont sit on here 20 hours a day like you do and read every thread.


If you could start PMing me everyday with important threads that i shouldnt miss that would be fantastic. I'm not the forum pro that you are.

Have a good one, dude!
yet, if you check his posts, Posts: 2,445.

haha that seems like a good amount to me. and thats just from posting, who knows how much he reads.
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Old Apr 20, 2007 | 03:36 PM
  #48  
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From: Illinois
Just drain it. It's easy. There are two plugs on the bottotm of the gas tank. Make sure you drain both.
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Old Apr 20, 2007 | 03:51 PM
  #49  
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From: Bay Area, California
Originally Posted by sl0ev0
when they stopped 94 octane over here, i filled up and they put in 91, and my car ran 100% fine
91 octane here
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Old Apr 21, 2007 | 02:10 AM
  #50  
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From: Aberdeen, NJ now in Ca.
Originally Posted by timllam10386
that's why in jersey you can't pump your own gas!
I always did! I only had 1 attendant give me crap about it.
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Old Apr 21, 2007 | 04:27 AM
  #51  
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From: bucks county, pa/philly
If its anything the like 1g fuel rail i used to take off the return line on the fuel rail run to a large bucket and start the car till your gas light comes on.This is what i did to get the 93 out to run straight race gas, then put the return line on and fill up with (93) hoping u went and got gas in a 5gal container befor u did this, then that should get u to the gas station to fill up.
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