Hybrid Car – More Fun with Less Gas

better mileage with higher octane?

register ::  Login Password  :: Lost Password?
Posted by dido on January 2, 2007, 1:11 pm
 


is there any truth to the statement that using a higher octane gasoline will
result in
better gas mileage? I understand that it may have other beneficial properties
ie.
anti-knock, acceleration, etc..

how would one calculate such a statement?

for reference, I usually fillup between 16-20 gallons, regular gas is 87 octane,
supreme 92 octane and in our area the price difference appears to be about
20c-30c
between regular and supreme.



Posted by <HLS on January 2, 2007, 1:17 pm
 




will result in

properties ie.

Dont worry about calculating anything.  Octane rating has no direct
relationship
to gas mileage.  Antiknock properties are the key.



Posted by stu on January 2, 2007, 1:28 pm
 



and just what do you think Octane rating a measure of?



Posted by <HLS on January 2, 2007, 1:50 pm
 



gasoline

The octane rating is, just as I said, a number related to antiknock
properties.



Posted by Eeyore on January 2, 2007, 2:04 pm
 



HLS@nospam.nix wrote:


And good anti-knock properties ( higher octane ) allow the ignition to be
advanced which *may* improve engine efficiency. It pretty much invariably
improves performance.

Graham



This Thread
Bookmark this thread:
 
 
 
 
 
 
  •  
  • Subject
  • Author
  • Date
please rate this thread