:agree: I bought a Vette and modified it, why go cheap now. :laughing:Patrick96LT4 said:Just the best go-go juice for my rocket.:thumbsup:
The problem with that logic is when you use a lower octane fuel, the computer will adjust and alter the timing. As a result, you will have a slight reduction in power, reduced efficiency and possibly no pinging. I agree that excess octane is a waste of money but you should use what is required for maximum efficiency.Slickstick said:http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm
If your car doesn't ping on regular then premium is a waste of money.
wish 93 was available in CA.:nuts:Bluvette1 said:Premo only 93artyon:
shockwave said:The problem with that logic is when you use a lower octane fuel, the computer will adjust and alter the timing. As a result, you will have a slight reduction in power, reduced efficiency and possibly no pinging. I agree that excess octane is a waste of money but you should use what is required for maximum efficiency.
The C5 has knock sensors so if a knock is detected from pinging, the computer will change the timing to reduce the pinging. It's a crude system which can't really analyze the octane level of the fuel but can detect pinging. Hence you can get away with using a lower octane fuel but may get a reduction in performance as a result. Personally, I would prefer to get all the performance I paid for and not worry about saving a few cents by using a lower octane fuel.Slickstick said:Of course you should use the manufacturers recommended octane.
The only difference between premium and regular is the amount of anti-knock compounds. To use premium in a low compression engine like a 190 hp L48 really is a waste of money and will not increase performance. There definately is a difference in the quality of brands of gas.
Can the computer tell what octane the gas is?