Quote:
Originally Posted by avalonandl
Not true. The ECM may not be using the tables that have the higher octane.
If the engine is tuned for 87 there is no real benefit. Will it hurt to run 91-93, no. Just extra $ which is .50-.60 a gallon here in Michigan.
|
Yeah, it depends on what the engine was tuned for. I will say my 2007 Impala SS with the LS4 also called for premium. I imagine most modern V8 engines are designed to run on premium primarily.