Any benefits to high octane
Are there any benefit to running octane gas when towing? I had heard when towing use high octane gas.
Forum Discussion
Sam Spade wrote:wwest wrote:
Just how does the computer adjust timing to prevent pre-ignition...??
It appears that we have at least one person here who understands the difference between "spark knock" and "pre-ignition".
Or not, because pre-ignition is not only a function of compression ratio but also a function of the temperature in the combustion chamber. A cold engine won't have pre-ignition, while an engine that's at operating temperature and/or being worked hard will.
If you reduce the temperature in the combustion chamber by adjusting the timing, you also affect the conditions under which pre-ignition can occur.
