Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: John 15:18-19
Mentioned: 0 Post(s)
Quoted: 35 Post(s)
Setting the switch tells the ECU to restrict certain parameters to accommodate the lower octane. So you're not doing any damage to the engine or fuel system.
You will probably notice a small decrease in fuel economy, although unless you're a true performance driver you won't notice any loss of power. I'd watch the economy issue and if it's significant enough, it may be more cost-effective in the long run to buy the more expensive fuel.
Take care and enjoy the ride,
Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)