Those of you who know more specifics about this than I do, I'd appreciate your insights!
Specifically, what might happen when somebody puts a tank of 87 octane into a tuned 1.4T that needs 91+ octane? I am not advocating that anybody do this. Accidental mis-fuelings are known to happen, however. Gas station attendants, spouses/friends who swap drivers on long trips, gas station in the boonies that only has 87, etc.
My hypothesis is that the knock sensors would be going nuts and yanking timing initially, then build the additional fueling and retarded timing needed to prevent a good bit of knock into the long-term fuel trims. They'd still be going nuts and your engine's life would still be very dependent on a pair of sensors. The car would still drive, but would be dog-slow and slurp fuel like it's free booze. At least those are my thoughts.
What else should we all know about this?
Specifically, what might happen when somebody puts a tank of 87 octane into a tuned 1.4T that needs 91+ octane? I am not advocating that anybody do this. Accidental mis-fuelings are known to happen, however. Gas station attendants, spouses/friends who swap drivers on long trips, gas station in the boonies that only has 87, etc.
My hypothesis is that the knock sensors would be going nuts and yanking timing initially, then build the additional fueling and retarded timing needed to prevent a good bit of knock into the long-term fuel trims. They'd still be going nuts and your engine's life would still be very dependent on a pair of sensors. The car would still drive, but would be dog-slow and slurp fuel like it's free booze. At least those are my thoughts.
What else should we all know about this?
