I just had my tranny gear oil on my 97 boxster with 104,000 original miles, I used 75w90 Max Gear from Royal Purple, prior to changing the oil i was starting to feel alittle kick on the gear shift lever when pulling out of first gear, But only when im being quick with the shifts. Not during normal driving. NOW however, the shifter goes into all the gears much much smoother and with lots more ease after a ride around the block through all gears.
Is it normal to feel results right away cause i tried to get the shift lever to kick out when shifting outta 1st gear all the way home but all seems well. I should go on the freeway to get fifth and fourth gears wet with the new gear oil.