2007-12-01 11:43:43 · 9 answers · asked by peanut 1 in Cars & Transportation ➔ Other - Cars & Transportation
Yeah, it the octane rating. Higher octane allows a longer burn time and is recommended with higher combustion pressures, ie forced inductions.
2007-12-01 11:51:54 · answer #1 · answered by abkwire 3 · 0⤊ 0⤋
The ONLY difference is the gas's resistance to predetonation (also called 'autoignition' or 'pinging'(. Some engines are designed to work with higher octane gas, and in those engines regular gas will predetonate, meaning it burns before the spark plug lights it, which causes problems in the long run (carbon buildup, burning valves, etc.)
These days, though, most cars have computer-controlled fuel injection and ignition timing. They detect pinging and change the timing to eliminate it. So even on regular gas they'll run fine, but you get a little less power, a little less efficiency.
In cars that aren't designed for 'premium', higher-octane gas, they will work fine with it but you are just wasting your money.
2007-12-01 11:54:44 · answer #2 · answered by Anonymous · 0⤊ 1⤋
Octane is the resistance to knock during combustion and yes there is a difference that these new alloy pistons will tell you about by breaking if you do it wrong.
Preignition is the auto's problem and has nothing to do with the octane! KNOCK is different and is controlled by the octane!
Higher compression and forced induction auto's will require the higher octane. Basic 9.0 to 1 Neons and minivans do not need it. Corvettes and GTI's do
ASE Cert Auto tech, 92 GTI16V 2.0L 10.25 to 1 compression and trick alloy pistons
2007-12-01 12:28:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋
yes the octane difference but it only makes a difference if you drive a certain kind of car. some require higher octane because the engine is higher compression.
2007-12-01 11:51:09 · answer #4 · answered by flashlight 2 · 0⤊ 0⤋
Not a lot other than the price. Most vehicles run just fine on regular.
2007-12-01 11:51:18 · answer #5 · answered by beez 7 · 0⤊ 1⤋
The level of octane, & the price;-} performance cars need it.
2007-12-01 11:59:41 · answer #6 · answered by Robert S 7 · 0⤊ 0⤋
super is an higher octane.. on newer cars it helps reduce carbon build up. it also inceases performance a little bit
2007-12-01 11:50:31 · answer #7 · answered by Anonymous · 0⤊ 1⤋
It is the amount of octane in the fuel.
2007-12-01 11:46:34 · answer #8 · answered by Cruiser 4 · 0⤊ 1⤋
simply put its more flamable, which in turns makes a bigger explosion which in turn gives you more performance
2007-12-01 12:39:49 · answer #9 · answered by longstroqz 2 · 0⤊ 0⤋