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You need to use the most expensive stuff, which is unfortunate on your wallet, but fortunate for your engine. Use Mobil 1 synthetic 0W40. Thats not true. Depending on the milage of the Saab, if it's new you can use a synthetic blend or full conventional (if your the risky type), and if it's over 50,000 miles use full synthetic or a synthetic blend with additives that help protect against sludge, which is a big problem with saabs.

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16y ago

What else can I help you with?