The higher octane is usually required to prevent preignition/detonation. A high performance engine (hp/displacement) can require a higher octane even with todays engine management computers. Note that this is not limited to the high horsepower engines, even a "economy" car can require a high octane fuel. Many engines today with forced induction (superchargers/turbochargers) and even those with a high compression ratio will require something better than "regular" gas (US terms).
-----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Ted MacNEIL Sent: Monday, March 08, 2010 3:15 PM To: IBM-MAIN@bama.ua.edu Subject: Re: [IBM-MAIN] z9 / z10 instruction speed(s) >So the next time I fill up at the gas station the price should be based >on horsepower. Actually, that analogy is a bit flawed. Higher horsepower requires, usually, more gas/octane. So, at the same price per gallon, the more powerful vehicles are already 'penalised'. - Too busy driving to stop for gas! ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
