Hi everyone, has anyone use 100 octane gas on a daily driver 2000 SS. Here in Las Vegas Union 76 has it. I've heard of people using this at the tracks but would like to know on a daily driver. Later

 

May screw up your emissions crap I.E cats!!

 

might have to tune the car for a specific timing tune

 

is it leaded or unleaded

 

Hi there, it is unleaded. Thanks

 

I think you will just be wasting your money if 93 gives you zero knock retard. But if it's unleaded you won't harm anything by running it. Remember, you get the most power by running the lowest octane without detonation.

 

My dad's friend was using 100 oct. in his 92 or 93 saleen (I can't remember exactly what year it is) Daily Driven. It threw a code, and he said it runs like crap now. I think it messed up the catts or 02's. Not real sure though.

 

Is it one of those ethonol added fuels? It might be, and that might be why it has such a high octane rating. If it is not then there should be no problems. If it is, just run some 89 octane threw it ever few tanks to help burn out any water it might have absorebed.

Personaly, I would run it, have a very agressive timing tune put in the car, and see if you get any extra ponnies from it. Otherwise if you do not get the extra timing tuned in the PCM you are just waisting your money buying the fuel. The higher octane rating fuel will NOT make the engine produce more power. Octane is the stability of the fuel, in other words, it ability to resist detinating, not the amount of energy it will produce. So if your engine is set up and tuned for 89 octane fuel, symply putting 110 octane fuel in it will NOT make it make more power. Now if you take that same engine and tune the engine to take advantage of the higher octane fuel(more timing added for instance) then you will see more power produced from that engine. But if you leave the tune for the 110 octane fuel in the PCM and go buy 89 octane fuel, AND stand all over the throttle, you will wined up building a new engine after you picked the old one up off of the road.

Long story short, you only need enough octane in your fuel to always keep it from detinating, and still be able to get that good of fuel were ever you go. Also keep in mind (I know this because I am in the oil and gas production buisness) the higher the elevation, the lower the octane rating at the pump, premium gas will be. And the lower the elevation, the higher the octane rating will be for the same premium gas, At the pump. This is because elevation does have an efect on the octane requirments of an engine. Densor air at low altitude compared to higher altitude.

 

I'm sure thats what the problem is.....