Recommended grade and viscosity
CAUTION
Use only engine oil with the recommended grade and viscosity.
NOTE
Engine oil viscosity (thickness) affects fuel economy. Oils of lower viscosity provide better fuel economy. However, in hot weather, oil of higher viscosity is required to properly lubricate the engine.
See also:
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New Chassis Tuning for 2011
The Subaru Impreza WRX STI was already a highly optimized performance
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Loading your vehicle
WARNING
Never allow passengers to ride on a folded rear seatback, in the trunk or in
the cargo area. Doing so may result in serious injury.
WARNING
● Never stack luggage or other cargo hi ...