While the 5.3L LS4 V8 was the first car engine to feature Active Fuel Management ... the LS4 powered the return of two iconic cars: The Chevrolet Impala SS and Monte Carlo SS.

These cars drive very smooth. I love Impalas and only buy them.l We purchased a 08 Impala SS. Has the 5.3 motor but it does 24 city and 16 highway. Good family car and still has the sporty feel to it.

I have had my 08 impala ls for almost 5 years now. It is my first car and ... I drove it for 6 months with ZERO OIL in the engine. Crazy lifter tick, I put oil in it, it’s fine.