05-06-2008, 08:06 AM
|
#1
|
|
Registered Member
Join Date: Apr 2008
Posts: 189
|
Straight from a veteran oil chemist:
Quote:
Tell them that BTUs are not a way to measure the worth of gasoline. Lead has negative BTU, but it increases the Octane rating. The infamous MTBE is an alcohol, but it increases the Octane rating. The Ethanol barely holds its own and it is also an alcohol. The alcohols are not very high on BTUs, but they do manage to help burn off the gasoline in the piston so that the vehicle isn't sending unburned gasoline out the tailpipe. A properly tuned engine may do the same thing. The lead helped to give a longer burn of the ignited gasoline increasing the stroke of the piston.
It is true that our raw gasoline has a direct correlation with BTU and Octane, but the type of molecule also plays a part in how it works inside the piston.
|
|
|
|
 |
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Car Talk & Chit Chat |
|
|
|
|
|
|
|
|
|
|
|
» Fuelly iOS Apps |
|
|
|
» Fuelly Android Apps |
|
|
|
Hybrid Mode
