It might not accelerate as quickly as it once did; the engine may not run as smoothly as you remember, or the fuel economy ...

Often, pre-ignition is achieved with a single fuel injector per cylinder ... there's more air than necessary for a clean burn, but this extra-lean mix is by design. Subaru envisions using this ...

And this is without sacrificing performance or fuel economy ... ventilated front seats, Subaru focuses on sure-footed, competently designed wagons and sedans that run cleaner than just about ...