FlyingDog

I'm not sure how it works, but it seems to be often found as a little metal tab stuck to the drain plug magnet.

FlyingDog

The manual specifies GL-5 and so does every differential case for which I've ever changed the oil. Just because the GL-4 makes your tranny shift smotther, doesn't mean it's not wearing the ring and pinion or differential. Maybe it's safe. Maybe it's not. Porsche seems to think it's not safe.

928ntslow

Well, I guess it's good timing then...I was planning on making a change anyway. Thanks guys.

...and Parker, don't use MTL.

Panzer9

Ix-nay on the 1st gear ownshifting-day. I do it every now & then too, just to hear that nasty back-pressure rumble. It's a very delicate maneuver, though. The reason for the "dogleg" 1st -is because the engineers intended for the car to be started off in second under normal conditions- as long as you dont ride the clutch.

BrianG

This isn't the engineering rendition that I have heard.

I heard that the shift pattern is "the European Race Pattern" for a 5 speed transmission. It was designed in this pattern so that start-off in first gear uses a shift position out of the "H". Then, the other 4 gears usually used in racing are easily accessible in the simple "H" pattern.(assuming that the track is fast enough to never need first except for the start-off)

To me this makes sense.

Starting off in 2nd gear in my '89 GT feels like a really bad idea for the clutch.

928ntslow

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Thats the same story I had heard. And it goes along with all the other things they designed into the 928.