Im looking at buying a drum of leaded 111 octane fuel to mix in with 92 octane when i go to the track. The guy at the petroleum distributors says that i can run it in my 96 corvette as long as i don't have catylytic converters. He said its actually better for the motor than leaded fuel. Yet ive heard leaded fuel is hard on engines designed for unleaded? who is right?

He also said it shouldn't effect my normal driving if i was to still have it in when i left the track. He just kept reminding me its "not street legal." Have any of you guys ran leaded fuel and had luck with it?

Id like to go with leaded as its 3.16 a gallon as opposed to 5.24 for leaded 104 octane. Plus the obvious reason that its 7 octane higher....any advice?

 

Why bother going to higher a octane gas? You aren't running a blower or turbo/s making serious boost that you need it. Also from your sig it doesn't look like you have abnormally high compression. Personally the gains you will see aren't worth the trouble. But do as you wish.

 

I don't see any reason why you need to run anything higher than regular 93 or 94 octane pump gas. You don't have high compression, you don't run high amounts of turbo or super boost, and you don't run a 250 or higher shot of N20. If you aren't running any of these things, you don't need high octane gasoline. In fact, running high octane gasoline will only hurt your performance, not help it. Higher octane gasoline requires more energy to reach the point of detonation. Too much octane is a bad thing, especially for stock or near stock cars. The only thing higher octane gasoline will do is slow you down, possibly as much as .3 to .5 of a second. As for the lead, it destroys catalytic converters and oxygen sensors. There really is no benefit running either one if your car is not going to be on the street or have emissions equipment. The only difference is the price, because it is more expensive to make high octane unleaded gas than it is to make high octane leaded gas. But again, there is no reason for you to use anything higher than 93. Don't fall into the gas station and ricer theories that higher octane equals higher performance. One is just looking to make money off you, the other is just plain stupid and doesn't know what they are talking about.