SMART roadster Operating Instructions Manual page 180

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Choosing the right type of oil
Use only oils approved by smart gmbh
(acc. to MB sheet 229.5). The MB sheet
number is marked on the oil containers. A
list of the approved engine oils can be
obtained from any smart center or
smart service.
>Important!
Do not use special additives. They may
lead to increased wear or engine damage.
A qualified specialist workshop such as a
smart center will be able to provide
further details.
Engine oil viscosity
The SAE class (viscosity) has to be chosen
in accordance with the average outside
air temperature for each current season.
Exact adherence to the SAE classes
according to the outside temperatures
would, however, necessitate frequent oil
changes. The temperature limits for the
SAE classes therefore should be viewed as
guidelines which can be temporarily
exceeded or undercut.
Engine oil level
Environment!
One drop of oil will contaminate
1,000 litres of water.
Take care not to spill oil when topping
up. Spilled oil could seep into the
groundwater and cause considerable
damage to the environment.
Routines 9 7