105 Octane Leaded Fuel
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Joined: Apr 2007
Posts: 80
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From: Kalamazoo Michigan
105 Octane Leaded Fuel
I have access to this fuel and I was wondering if there would be a problem with running this on certian occasions. I have eliminated the cats, but I was wondering if the leaded fuel would harm any thing else.
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
Not sure,,the cats are the main reason for unleaded. Not sure if the leaded gas might foul the O2 sensors. In theory leaded gas would slightly shortened spark plug life,,and lead to a little shorter life span for the oil.Since you have removed the cats,,only question would be the sensors.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
it will kill your engine
Burning Brakes
Joined: May 2008
Posts: 1,147
Likes: 1
From: Mohegan Lake New York
AU N EGL Have seen your post's before you seem like a pretty sharp guy but why would race gas kill the engine and why carburetered use only, i agree with killing o2's and cats just how is race3 gas gonna kill a engine??
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
throw off the O2 sensors if not foul them up too. which will tell your ecm to either shut the engine down or put into reduced power mode. Most likley shut the engine down.
The other thing about 110 leaded is that it is not too stable and might break down into its components, which IRC most of that is Benzine. We bit on the carcinogenic side
Plus the ECM is not tuned for 110 leaded.
You can find some 100 unleaded race fuel, and you can put that in and your engine will run. But to run 100 octane properly it also requires a retuning
I use 4:1 93:100 in the summer for hot hummed condition, and that needs a retuning as well.
Last edited by AU N EGL; May 23, 2009 at 08:14 PM.
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Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Are there any DTC's displayed when the 02 sensor causes either to happen, and if so, could you please fill in the blanks here ? (use as many as needed).
P _ _ _ _
P _ _ _ _
P _ _ _ _
P _ _ _ _
P _ _ _ _
Thanks!
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
You can run 100 octane unleaded. and your ecm WILL adapt some what. However, if you tune your car for 100 octane, it will run very well and get you quite a bit more HP and torque.
But at $5.75+ or so a gallon - unless your W2W or drag racing, is it really worth it?
Sunoco has some very good info on race fuels
Leaded
http://www.sunocoinc.com/site/Consum...ditionalFuels/
Unleaded
http://www.sunocoinc.com/site/Consum...UnleadedFuels/
SunocoGT100 locations:
http://www.sunocoinc.com/site/Consum...T100Locations/
But at $5.75+ or so a gallon - unless your W2W or drag racing, is it really worth it?
Sunoco has some very good info on race fuels
Leaded
http://www.sunocoinc.com/site/Consum...ditionalFuels/
Unleaded
http://www.sunocoinc.com/site/Consum...UnleadedFuels/
SunocoGT100 locations:
http://www.sunocoinc.com/site/Consum...T100Locations/
Last edited by AU N EGL; May 24, 2009 at 07:35 AM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Little history of Leaded fuels:
http://en.wikipedia.org/wiki/Tetra-ethyl_lead
http://www.runet.edu/~wkovarik/ethylwar/
http://en.wikipedia.org/wiki/Tetra-ethyl_lead
http://www.runet.edu/~wkovarik/ethylwar/
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
I have access to this fuel and I was wondering if there would be a problem with running this on certian occasions. I have eliminated the cats, but I was wondering if the leaded fuel would harm any thing else.
