2.3l driver said:which kind of gas do you guys put in your 5.0's I usually put 87 in mine beause it says to use unleaded on the dash board.
maverick0716 said:Pretty much all fuel now is unleaded. 87 isn't the only grade that's unleaded.
2.3l driver said:which kind of gas do you guys put in your 5.0's I usually put 87 in mine beause it says to use unleaded on the dash board.
2.3l driver said:my 5.0 only has flow master pipes underdrive pulleys and a k&n airfilter and is manual.
TRWXXA said:None of that makes a difference. If your car still has stock timing, and nothing like a supercharger or nitrous, you should be able to use 87.
Now, if you car has a lot of deposits in the combustion chamber, you may need to step up the octane to prevent knocking or pinging. This would fix the symptom, but it would not be the cure.
Essentially, use the lowest octane rating that does not result in pinging (the sound of a can full of marbles being shaken) at WOT. Using a higher octane gives no benefit at all (unless you enjoy paying more for gas), and even decreases performance.
Might want to recheck that line of thinking.wildstang87 said:actually higher octane is always better, as it burns cleaner and more effieciently. more complete burning of the fuel means less carbon build up. it also burns cooler than lower octane fuel hense the reason race fuel is called cold fuel. and the cooler the combustion chamber the happier i am. but no, at the price right now who cares.
HISSIN50 said:Might want to recheck that line of thinking.
you're mostly correct. a higher octane can be compressed more. it won't be more resistant to buring, it will be more resistant to detonation. (being ignited)TRWXXA said:I agree. I don't think your logic is correct, Wildstang87.
Octane rating has nothing to do with the energy potential or burning efficiency of a fuel. It is a measure of it's resistence to knocking. High compression engines require the higher octane so the fuel/air mixture does not ignite too early under the higher pressure and heat in the combustion chamber.
Engines that use high octane fuel develope a lot of power because they use the energy potential of the fuel more efficiently. To do this, they require a fuel that will actually be more resistent to burning until the time is just right.
Remember, you can buy a bottle of octane booster. If you add it to your fuel tank, you still have the same exact gas you had before, you've just chemically make it more resistent to preignition.
You'll have to find a chemical engineer to tell you how it does this.
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?