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What is SFI? I know what TPI and OHC is,what i'm looking at reads 4.6 V-8 OHC SFI????? I love my Lincoln's,i've had Cadillac's in the past and had some serious problems,maybe i didn't get lucky.I know this is my 2nd Lincoln hopefully soon to be a 3rd,except i'm getting newer each time lol.Thanks.....

Sequential Fuel Injection. It will shut 2 cylinders off when you aren't using them saves gas.

It has A 4.6 Litre Modular OverheadValve Pushrod V8 with SFI or sequential fuel injection

Answer:

SFI (Sequential Fuel Injection) also called as SEFI( Sequential Electronic Fuel Injection) . Unlike the Multi Point fuel injection (MPFI) system, SEFI has separate fuel injectors for each cylinder which inject fuel more precisely increasing the fuel efficiency

SFI stands for Sequential Fuel Injection or sometimes known as Fuel Stratified Injection.

This is basically the standard type of fuel injection for most vehicles. It consists of an individual fuel injector that provides fuel for each cylinder separately, and as needed.

This, as opposed to TBI or Throttle Body Injection which is essentially a carburetor type system where the fuel in injected into the throttle body.

SFI is definitely superior in both performance and fuel economy.