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17:13, 8 November 2009 ==Conventional versus Synthetic Oils==
All turbo Saabs should be given synthetic oil and regular oil changes. Most recommend that synthetic oil be changed at least twice per year or approximately every 7500 miles.
===Changing from Conventional to Synthetic===
Some say that switching from conventional oil to synthetic, particularly on high mileage engines, can cause an engine to leak. What is actually happening is that conventional oil creates build-up around seals that would normally be leaking. Synthetic removes this build-up and can begin to seep past seals. So what is actually happening is that synthetic oil is uncovering the leaky seals that already exist in the engine.
==Engine Break-in==
Conventional oils are recommended for approximately the first 1000 miles during engine break-in of a new or rebuilt engine. The ultra slippery nature of synthetic oils can cause the rings to fail to seat properly, or take much longer than they should.
==Recommended T7 Oils==
==Recommended T5 Oils==