How Much Oil Really?

[Flavor 987S]

Originally Posted by thstone

Oil capacity is 9.5 quarts.

Oil change with new filter requires 8.7 quarts (oil filter itself is 0.2 quarts) (both numbers from owners manual)

Therefore, a little less than 1 quart remains in the oil cooler and internal engine passages.

8.7/9.5 = 92% of oil is changed (with new filter)

Originally Posted by san rensho

Completely different system, the 993 is a dry sump design which retains a lot of oil in the lines, cooler etc. Box is a wet sump that retains very little. When I do an oil change, I use about 9-1/2 quarts on refill after about a 1/2 hour drain when completely hot. 9-1/2 is what the manual specs.

Thanks, guy! Much appreciated.