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Old 12-22-2020, 10:00 AM   #407
ermax
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Quote:
Originally Posted by bfrank1972 View Post
B) you shouldn't use any old weight you choose and ignore that design. Thicker oil has a harder time flowing through tight bearing journals etc. It really depends on tolerances in the motor.

Again, different oils for different uses. The CS-Cup is the same engine we have. They just specify the oil needed for the task at hand, racing. Not daily driving, not track days, not time attacks, not autox. I can guaranty they didn't specify 10W-60 with the goal of destroying the engine as fast as possible. If I recall the GT86 manual in Japan also lists optional oils depending on use. Same engine, same tolerances.
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