RWJon Posted February 21, 2011 Report Share Posted February 21, 2011 Gased up my '11 350 'R' tune yesterday...with 89 octane gasoline. Not on purpose, mind you. Did not realize what I was doing untli 'she' was full. I was going to siphon as much as possible out, but the capless filler neck seems to have a locking divice on it which prohibits my getting a siphon tube into the tank. I was planning on keeping the speed and rpms down and as I used up quarter tanks worth of gas, replacing with 93 octane. Would I be better putting a fuel octane aditive into the tank? Any thoughts would be greatly appreciated. Thanks, ciao and God bless...Jon Link to comment Share on other sites More sharing options...
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