the purpose of the higher octane fuel
is to allow you to raise the compression ration CR.
this increases power AND efficiency of the engine.
but, doing so causes low octane to detonate (ping or knock is the slang)
this Pinging will destroy the motor is short order.
so what you do to solve this issue, is to up the octane and or add water injection.
that purpose. High Octane solves to burns too fast issue of REGULAR gas.
putting high octane in a low CR motor is just like throwing money down a drain.
the motor tunes it self to Regular and runs perfect, in fact the manual says run regular for that very reason.
if you want to argue , additives, that is a whole diff matter.
you can google the above and find a million hit, just like it.
or just login into and read SAE.org. IT'S ALL THERE.
read what the engineers say there, they designed your car.
or go to any mechanical engineering department xxx University.org, and read their posts.
even test they do proving all these theories and facts.
and is the rear cylinder the runs hottest. (furthest from the pump)
My recommendation is to:
run good oil (don't need to be synthetic )
keep the level to the top of the dip sick so it don't over heat.
change oil often.4 to 5k. (the older the more often)
Drive at rational speeds. 65. not 85
keep motor running right not with bad sensors. and the like.
keep fresh hoses and belts on car, don't run them for 20 years.
Put in the best OEM style air filter you can by, not for flow but for filtration.
all filters let dirt into the motor, some way less.
those cold air kits ,, many are crap. (independent testing proved it)
that is my 2cents. YMMV, IMHO. etc.
Last edited by jtgh : 07-15-2009 at 06:06 PM.
|
