Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table.

See also:
GVWR and GAWR (Gross Vehicle Weight Rating and Gross Axle Weight Rating)
The certification label attached to the
driver’s side doorjamb shows GVWR
(Gross Vehicle Weight Rating) and GAWR
(Gross Axle Weight Rating).
The GVW (Gross Vehicle Weight) must
never exce ...
Fuel octane rating
This octane rating is the average of the Research Octane and Motor Octane numbers and is commonly referred to as the Anti Knock Index (AKI).
Using a gasoline with a lower octane rating can cause pers ...
SAFETY
Although the STi wasn't designed as a family car, all of the family-centric
safety features on the Impreza sedan are in it. The STi has four-wheel-disc
antilock brakes with brake assist, stability ...
