What octane gas are you guys running?
08-19-2009, 07:10 AM
#41
Administrator
08-19-2009, 07:46 AM
#42
12 Second Club
Ethanol does have a higher octae rating than gasoline, but a lower specific heat. This means that a gas company can inflate the octane number with ethanol and since ethanol is cheaper it saves them money. The lower specific heat means that ounce for ounce you will get less power from ethanol than from gasoline. If you had a vehicle that could compensate for the ethanol in the system and increase the fuel, you could make more power with ethanol. Our cars are not that smart so it simply costs us power.
I use a weather computer to predict ET at the track and can definately notice a change in performance from using other than Chevron gas. I lose as much as .200 sec in the 1/4 mile. We don't have sonoco or 76 here so I can't speak about them. On the street you may not notice the diference in cheap 91 and good 93.
Originally Posted by Xtreme864
does it really matter what station you get it from? I get mine from spinx all the time because they give you 8 cent off the gallon for using debit or cash.
08-19-2009, 07:09 PM
#46
TECH Apprentice
iTrader: (15)
Join Date: Mar 2009
Location: Greenville, SC
Posts: 365
Likes: 0
Received 0 Likes
on
0 Posts
hell, it's my money and my jeep...well actually sold it like 2 years ago. Say what you want, but i drove it for the first few months i had it on 87 and noticed a difference instantly after switching to 93. i'm not saying it gave me 10 extra miles to the gallon, but it did help.
08-19-2009, 08:24 PM
#47
Staging Lane
Join Date: Aug 2009
Location: Phoenix, AZ
Posts: 85
Likes: 0
Received 0 Likes
on
0 Posts
i use 91 here, mainly from QuikTrip since they have a guarantee that if your car is damaged by their gasoline, they pay for the repairs. from my understanding with Arco, they usually cost less since they actually own everything from start to finish whereas most other companies outsource their drilling and some other areas in the process. Either case, i never go there. Circle K, which uses 76, has a couple of stations in the city here that have racing fuel.. i think 109 octane or something like that, but it's too far and not necessary in my case to be using.
i do toss some octane booster in there from time to time though.
i do toss some octane booster in there from time to time though.
lol 
08-19-2009, 09:49 PM
#52
Launching!
iTrader: (4)
Join Date: Sep 2007
Location: Beacon Falls, CT
Posts: 256
Likes: 0
Received 0 Likes
on
0 Posts
Shell 93 Vpower only here. Even in my Pathfinder. I dont care what anyone else says I can totally tell the difference between driving either car with 87 and 93. And from what I have read and seen Shell is the cleanest. The grocery store stations and Bjs and them all use crappy gas.
IF I cant find a Shell then I will use Sunoco but thats it.
IF I cant find a Shell then I will use Sunoco but thats it.
08-20-2009, 07:55 AM
#55
12 Second Club
08-23-2009, 01:31 PM
#58
Staging Lane
Join Date: May 2009
Location: bay area, ca
Posts: 73
Likes: 0
Received 0 Likes
on
0 Posts
91 or 93 here, and i dont use the single hose pumps because of the mix of fuels. But right now I am just using diesel lol, oh yea I am not driving the trans am at the moment I am driving one of those caimens, for the army 440 ci inline 6 turbo charged. 950 ft lbs tq 450 horsepower, equaling out to 31 tons lol.
08-23-2009, 01:50 PM
#59
TECH Regular
Join Date: Oct 2008
Location: Maryland
Posts: 406
Likes: 0
Received 0 Likes
on
0 Posts
Shell 93 Vpower only here. Even in my Pathfinder. I dont care what anyone else says I can totally tell the difference between driving either car with 87 and 93. And from what I have read and seen Shell is the cleanest. The grocery store stations and Bjs and them all use crappy gas.
IF I cant find a Shell then I will use Sunoco but thats it.
IF I cant find a Shell then I will use Sunoco but thats it.
