2007-04-12 10:03:43 · 3 answers · asked by kirby69r 1 in Cars & Transportation ➔ Maintenance & Repairs
No.
In modern engines, the air/fuel ratio is controlled to be optimal at all reasonable operating altitudes. Higher octane is required to prevent engine ping or knock. Many modern engines can take advantage of higher octane by advancing the timing and get better performance than with lower octane. Check your owner's manul. There is no advantage to using higher octane than that recommended by the manufacturer.
2007-04-12 10:20:19 · answer #1 · answered by Roller 1 · 0⤊ 0⤋
Nope. In fact, you can use lower octane at higher altitude because of the lower air pressure. A lot of stations over 4,000 ft sell 86 instead of 87 for regular.
2007-04-12 12:46:41 · answer #2 · answered by Nomadd 7 · 0⤊ 1⤋
no. higher altitudes actually require less octane
2007-04-12 10:17:48 · answer #3 · answered by Captainpegs 3 · 0⤊ 0⤋