check engine HYUNDAI I20 2015 Service Manual

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Recommended SAE viscosity
numberEngine oil viscosity (thickness) has
an effect on fuel economy and cold
weather operating (engine start and
engine oil flowability). Lower viscosi\b
ty engine oils can provide better fuel
economy and cold weather perform\b
ance, however, higher viscosity
engine oils are required for satisfac\b
tory lubrication in hot weather. Using oils of any viscosity other than
those recommended could result in
engine damage.
When choosing an oil, consider the
range of temperature your vehicle
will be operated in before the next oil
change. Proceed to select the rec\b
ommended oil viscosity from the
chart.
Always be sure to clean the area
around any filler plug, drain plug,
or dipstick before checking or
draining any lubricant. This is
especially important in dusty or
sandy areas and when the vehicle
is used on unpaved roads.
Cleaning the plug and dipstick
areas will prevent dirt and grit from
entering the engine and other
mechanisms that could be dam\b
aged.
CAUTION
Temperature Range for SAE Viscosity Numbers
Temperature
°C
(°F)\b 3 0 \b 2 0 \b \f 0 0 \f 0 2 0 3 0 4 0 5 0 \b \f 0 0 2 0 4 0 6 0 8 0 \f 0 0 \f 2 0
Diesel
Engine Oil
5W\b30
\f5W\b40
\f0W\b30
0W\b30
Petrol
Engine Oil *\f
20W\b50
\f0W\b30
\f5W\b40
OW\b30, 5W\b30, 5W\b40
*\f : For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W\b30 (ACEA A5/B5). However, if the engine oil is not available in your coun\btry, select the proper engine oil using the engine oil viscosity chart.