93 Octane

Tulsa cobra · #1 (**permalink**) 08-03-2010, 07:11 AM

I was wondering if anybody knows in Bixby/Jenks or South Tulsa or for that matter any of Tulsa that has 93 octane with out ethanol.

I just got my BDR Cobra (will post pics soon) and it has a Roush 427 SR/TW. all I can find is 91 octane, both Roush and the builder recommend 93. It has aluminium heads so they say that I may not be able to detect knocking as well.

I have read the very well written article on volvospeed about octane and octane boosters and would like to simplify by just buying gas with the AKI of 93. If not I will use the Lucas booster due to its test data.

Thank you for your help. I just recieved it on Friday, and want to take some pics with a good backdrop, but seeing that 102 weather makes everything dead brown, might just settle for some in driveway pics.

mpanten · #2 (**permalink**) 08-03-2010, 07:56 AM

Cant specifically help you but you may want to carry a couple bottles of Lucas octane booster just in case. 2 bottles will definately raise your octane 3 points. 1 bottle will raise 10 gallons 3 points so 2 should do it.

Clois Harlan · #3 (**permalink**) 08-03-2010, 08:37 AM

mpanten is right and I also carry a couple bottles of the octane booster. I think the most you can boost your octane is 2 or three points. But, what I do is go by Mikes speed shop or Gran Prix and mix in about 5 gals of 110 octane with my 91 octane. I just spoke to a friend of mine at the Sun Refinery and he tells me that both Tulsa and OKC have dropped the 93 octane fuel. I don't know if the Sinclair refinery still makes 93 octane or not.

I would love to see your car when you are ready. Maybe we can meet at the one of the cruise ins on Tues or Sat.

Clois

Juggernaut · #4 (**permalink**) 08-03-2010, 09:33 AM

Tulsa Cobra,

Congrats on getting your Cobra! Make sure to post some pictures. If you're interested, a bunch of us car/Cobra nuts have some events planned for this month, in short they are:

August 7th. - car show in Vinita with a cruise-in afterwards

August 21st. - BBQ at a fellow Cobra friends place in Grove with a cruise-in at Grove that evening. I understand that a "surprise guest" from the Cobra manufacturers world may join us at the BBQ!

August 28th. - car show at Lake Hudson in Salina

We have a few more things planned in September too. I'm in the process of putting a couple of cruises together throughout the remainder of the year.

If you want more info on any of these events, send me a pm or e-mail me at projectscales@hotmail.com

See ya,
Randy

Clois Harlan · #5 (**permalink**) 08-03-2010, 10:11 AM

I found some 93 octane in a couple of places but they all have ethenol which hasn't hurt my engine in 10 years.

im sure you guys already know but quick trip at 61st and hiway 169 has 93 octane on one pump only.
BTW, it is the southwest pump on the highway side

Also, on the south side of town they sell it at the Okmulgee Shell Travel Mart. I am told there are a couple independent stations on the Northeast part of Tulsa.

I hope this helps.

Clois

CowtownCobra · #6 (**permalink**) 08-03-2010, 12:40 PM

Ethanol @ 10% hasn't seemed to do any damage so far. But there is talk by our illustrious leaders to go to 15%. That scares me...

coosawjack · #7 (**permalink**) 08-03-2010, 02:37 PM

Quote:

Originally Posted by CowtownCobra

Ethanol @ 10% hasn't seemed to do any damage so far. But there is talk by our illustrious leaders to go to 15%. That scares me...

15% is not stable and that is why the lower limit is set at 10% max......most that I find has about 8%!!

BTW, ethanol is more expensive than gasoline and they wouldn't even use any if the Gov't didn't make them!!!

From 10% ETO to abut 75% ETO it is an ugly, unstable mixture....the E-85 at 85% ETO!!

My $.02....FWIW??