Changing The Oil And Oil Filter; Recommended Grade And Viscosity; Synthetic Oil - Subaru Ascent 2023 Manual

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Engine oil
& Changing the oil and oil filter
Change the oil and oil filter according to
the maintenance schedule in the "War-
ranty and Maintenance Booklet".
The engine oil and oil filter must be
changed more frequently than listed in
the maintenance schedule when driving
on dusty roads, when short trips are
frequently made, or when driving in ex-
tremely cold weather.
NOTE
. Changing the engine oil and oil filter
should be performed by a well-
t r a i n e d e x p e r t . C o n t a c t y o u r
SUBARU dealer for changing the
engine oil and oil filter. Fully trained
mechanics are on standby at a
SUBARU dealer to utilize the special
tools, spare parts and recom-
mended oil for this work, and also,
used oils are properly disposed of.
. If performing oil replacement your-
self, observe the local regulations
and dispose of waste oil properly.
& Recommended grade and
viscosity
CAUTION
Use only engine oil with the recom-
mended grade and viscosity.
Refer to "Engine oil" �P523.
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 en-
gine.
& Synthetic oil
You should use synthetic engine oil that
meets the same requirements given for
conventional engine oil. When using syn-
thetic oil, you must use oil of the same
classification, viscosity and grade shown
in this Owner's Manual. Refer to "Engine
oil" �P523. Also, you must follow the oil
and filter changing intervals shown in the
"Warranty and Maintenance Booklet".
NOTE
Synthetic oil of the grade and viscosity
noted in chapter 12 is the recom-
mended engine oil for optimum engine
performance. Conventional oil may be
used if synthetic oil is unavailable.