What Type Gas to Use?
Originally Posted by Sol705
Hi everyone, I just got my Fit about a week or two ago. The dealer at the time told me to use 87 octane for gas, but the manual says to use higher. Thoughts?
Premium!!!
I guess it's a matter of preferrence,which wont harm the FIT,Heck !! ,Some folks want a clean burn and better oomph!!.You cant go wrong with either.Fot the mileage your getting?? It's still a bit cheap to get premium....5 to 10 cents diff,give or take.Depending what the rates are.
Octane rating has NOTHING to do with oomph and clean burn. It's all about predetonation under pressure. Nothing more, nothing less.
"Octane is measured relative to a mixture of isooctane (2,2,4-trimethylpentane, an isomer of octane) and n-heptane. An 87-octane gasoline, for example, has the same knock resistance as a mixture of 87 vol-% isooctane and 13 vol-% n-heptane. This does not mean, however, that the gasoline actually should contain these chemicals in these proportions. It simply means that it has the same autoignition resistance as the described mixture."
However, if your engine is not a high compression engine then getting anything higher then what is recommend will do nothing for you. Even oil companies will admit this although begrudgingly since they would rather you paid for the premium fuel.
But hey it's your cash, throw it away as you will. As long as you think you are doing your car better then surely you are. :-)
For further reading on this subject: http://en.wikipedia.org/wiki/Octane_rating
"Octane is measured relative to a mixture of isooctane (2,2,4-trimethylpentane, an isomer of octane) and n-heptane. An 87-octane gasoline, for example, has the same knock resistance as a mixture of 87 vol-% isooctane and 13 vol-% n-heptane. This does not mean, however, that the gasoline actually should contain these chemicals in these proportions. It simply means that it has the same autoignition resistance as the described mixture."
However, if your engine is not a high compression engine then getting anything higher then what is recommend will do nothing for you. Even oil companies will admit this although begrudgingly since they would rather you paid for the premium fuel.
But hey it's your cash, throw it away as you will. As long as you think you are doing your car better then surely you are. :-)
For further reading on this subject: http://en.wikipedia.org/wiki/Octane_rating
Originally Posted by fitIN
I guess it's a matter of preferrence,which wont harm the FIT,Heck !! ,Some folks want a clean burn and better oomph!!.You cant go wrong with either.Fot the mileage your getting?? It's still a bit cheap to get premium....5 to 10 cents diff,give or take.Depending what the rates are.


I think 87 is just fine but if you want to get more gas mileage, go one step higher to 89. My friend drives cleaning ladies for a living and he tanks up his van a lot so he has tried it all. He says he gets the most mileage from the medium grade of fuel and he swears by it.
Its only about 9 to 10 cents more per gallon and you end up saving in the long run.....
Its only about 9 to 10 cents more per gallon and you end up saving in the long run.....
Originally Posted by TedsFit
I think 87 is just fine but if you want to get more gas mileage, go one step higher to 89. My friend drives cleaning ladies for a living and he tanks up his van a lot so he has tried it all. He says he gets the most mileage from the medium grade of fuel and he swears by it.
Its only about 9 to 10 cents more per gallon and you end up saving in the long run.....
Its only about 9 to 10 cents more per gallon and you end up saving in the long run.....
Additives might be what is helping, otherwise it's pure placebo in your friend's case.
Originally Posted by Wave
I don't have the manual anywhere near me at the moment - what exactly does the manual state?
Like the others, I agree that unless ye have pinging, no need/benefit from premium fuel.....
Originally Posted by bschurma
Octane rating has NOTHING to do with oomph and clean burn. It's all about predetonation under pressure. Nothing more, nothing less.
"Octane is measured relative to a mixture of isooctane (2,2,4-trimethylpentane, an isomer of octane) and n-heptane. An 87-octane gasoline, for example, has the same knock resistance as a mixture of 87 vol-% isooctane and 13 vol-% n-heptane. This does not mean, however, that the gasoline actually should contain these chemicals in these proportions. It simply means that it has the same autoignition resistance as the described mixture."
However, if your engine is not a high compression engine then getting anything higher then what is recommend will do nothing for you. Even oil companies will admit this although begrudgingly since they would rather you paid for the premium fuel.
But hey it's your cash, throw it away as you will. As long as you think you are doing your car better then surely you are. :-)
For further reading on this subject: http://en.wikipedia.org/wiki/Octane_rating
"Octane is measured relative to a mixture of isooctane (2,2,4-trimethylpentane, an isomer of octane) and n-heptane. An 87-octane gasoline, for example, has the same knock resistance as a mixture of 87 vol-% isooctane and 13 vol-% n-heptane. This does not mean, however, that the gasoline actually should contain these chemicals in these proportions. It simply means that it has the same autoignition resistance as the described mixture."
However, if your engine is not a high compression engine then getting anything higher then what is recommend will do nothing for you. Even oil companies will admit this although begrudgingly since they would rather you paid for the premium fuel.
But hey it's your cash, throw it away as you will. As long as you think you are doing your car better then surely you are. :-)
For further reading on this subject: http://en.wikipedia.org/wiki/Octane_rating
Kidding aside!! Yes its probably true,If you/ or us all know what the GasOil manufacturing companies are doing beside refining/testing/additive sorts. We will never know.I call it an upsize move/desicion.Some will say that gas is all the same,but when it comes to the testing race circuit or what not??? Octane level matters.It's up to you to try and purchase if you can afford it.I could see the same use for a Fit but when your driving an exotic/sports car ie# DB7,Countach...Grade will matter.Gotta love then Fits 87 or not!!!



