No, the 7M does not have any oil issues which are very common, at least not in the Supra. The people who have had these problems are typically people who "drift" and even then it is not a common problem. It can be addressed by adding more baffling to the pan and/or adding a "crank scraper". It is also safe to run up to 1 quart more oil than specified but keep in mind that this does add a bit more resistance that the crank has to overcome as it rotates.
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