93 octane?

[Leadfoot_mf]

the main difference between grades of pump gas (other than octane rating) is the amount of detergents and additives in it. 93 octane is cleaner, burns more efficiently, and has been said to cut down in valve deposits and keep injectors cleaner. I have never had a car that could run on regular, so I dont use it. I used to have a Z71, and It seemed to get a little better gas mileage on premium (about 1.5mpg more). I would use it anyway regardless if my car required it or not. Its not really that much more. If you fill up 10 gallons, you spend $2 extra... Whats an extra $2 when you are going to pay $27-30 for the fill up anyway.

wow u are wrong read previous post.

[Mi6o]

wow u are wrong read previous post.

so what do u suggest?

[fatman169]

87 for the win!!!!

[i<3grnbeast]

Since I am an automotive professional, here is my opinion. take it or leave it, i suppose.

If your vehicle does not call for higher octane gas, then it is definitely a waste of money. I would suggest you read the wiki referenced a few responses above -- but if you find it too hard to read, the key is pre-ignition or pre-detonation. Higher octane = harder to burn. Engines with high compression should use higher octane. But your standard honda motor does no better with high octane. If you use cheap gas in a car that asks for 90 or better, you will actually get worse fuel economy and performance because the fuel ignites before it should. Most modern engines can compensate for this by retarding ignition timing -- in fact, earlier mercedes-benz vehicles actually were sent to the US market with a "reference resistor" that retarded ignition timing a few degrees to prevent preignition because the engineers figured us stupid americans were going to put cheap gas in our cars.

Again, bottom line, no, there is no benefit to higher octane if you don't need it. But if you do need it, you must use it or your will get reduced performance, gas mileage, and possibly cause premature wear / premature failure of componets, excess carbon build-up, etc.

[Mi6o]

i'll stick to 87...thanx for all the help

[Leadfoot_mf]

Since I am an automotive professional, here is my opinion. take it or leave it, i suppose.

If your vehicle does not call for higher octane gas, then it is definitely a waste of money. I would suggest you read the wiki referenced a few responses above -- but if you find it too hard to read, the key is pre-ignition or pre-detonation. Higher octane = harder to burn. Engines with high compression should use higher octane. But your standard honda motor does no better with high octane. If you use cheap gas in a car that asks for 90 or better, you will actually get worse fuel economy and performance because the fuel ignites before it should. Most modern engines can compensate for this by retarding ignition timing -- in fact, earlier mercedes-benz vehicles actually were sent to the US market with a "reference resistor" that retarded ignition timing a few degrees to prevent preignition because the engineers figured us stupid americans were going to put cheap gas in our cars.

Again, bottom line, no, there is no benefit to higher octane if you don't need it. But if you do need it, you must use it or your will get reduced performance, gas mileage, and possibly cause premature wear / premature failure of componets, excess carbon build-up, etc.

very well put