The Porsche 911SC uses a dry sump system. Due to this, the oil is located in a separate tank located in the rear passenger wheel arch. To change the oil you have to drain both the engine and the oil tank.
Changing the oil on a 911 is a simple process requiring limited mechanical knowledge and experience. here we have documented a simple step-by-step guide to changing the oil. Follow these steps and you should have no problems..
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Get engine warm, we normally run the engine to half operating temperature.
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Get a big oil drain pan able to hold at least 12 liter of oil.
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Park the car on a flat surface and then safely jack up the rear an put on jack stands.
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put big pan under oil tank (passenger side rear wheel well)
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loosen drain plug in oil tank and remove plug and drain the oil.
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Clean plug. Put plug and new washer back in oil tank and tighten.
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locate case drain plug on bottom of engine.
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move drain pan under engine case and remove plug and washer. Drain case.
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Clean drain plug. Put plug and new washer back in case and tighten.
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put paper towels underneath oil filter (rear passenger side of engine bay) and remove oil filter.
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wipe small amount of oil around gasket of new oil filter and screw it in place.
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clean up oil filter area with paper towels.
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drop car off jack stands
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add 9.5 liter of new oil
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Start car and let it thoroughly warm up. I normally take the car for a short local drive.
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using dipstick add additional oil until level is midway between hash marks.
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go out and drive car.
