My 2001 Boxster S hasn't had a tranny fluid flush since I bought it in 2009! Don't know if it had one before I bought it.

Anyways, my local shop can get in:

Fuch's Titan Sintopoid 75w90 GL5
Motul Gear 300 75w90(?)
LiquiMoly LM 2048 75w90 GL5

I want to do a tranny flush before the London Porsche Trackday on Friday, so I settled on the Liqui Moly.... should be in tomorrow, and I'll RR the fluid tomorrw evening...

...finger's crossed

 

ask for a sample of the old fluid?
Or at least get the tech's comments on condition....
Or if you're doing it? report back.

 

A few tiny metal flecks at the bottom of my drain pan.


Clear hose routed from wheel well to tranny fill port.
Caught some mid stream tranny fluid just in case I want to send it off for analysis.

Visual characteristics ... Both the old fluid and the new fluid are less viscous than what I pictured ​75w90 fluid to be. Not an overly powerful gear oil smell to it. Color of fluid that came out was like a strong tea or weak black coffee.

A few small metal bits in the bottom of my catch pan.

​I couldn't find a transfer pump that I trusted at home, so I filled via gravity and squeeze method. The liqui moly bottles come with a tube to facilitate transfer of fluid, but I could not fit the bottle in there. I ran about a 5' piece of clear 1/2" hose from the fill port up above the exhaust and over the driver rear tire. I taped it in a couple spots so that it stayed put. From beside the car, I squeezed the tranny fluid into the 1/2" tube and filled the tranny that way. Took a couple minutes to do each 1L bottle. I did have the bottles sitting in a Paul of hot water to make them easier to pour, but at 20c ambient temp, I don't think I needed to do that.

Not crush washer on my tranny, so I didn't install one when I buttoned it back up.

​​​​​​Took it for a 15 minute test at drive in the country. The thing shifts like a Honda, which in my book is a good thing. I like it, and think it's improved, but could also be placebo effect.

Here s hoping the attachments work.




​

 

I opted for original Porsche fluid when I flushed the transmission oil out on my 996. I had considered aftermarket oils, but stuck with original as it was the most accessible (and cheapest!)

 

Really?

Closest pcar dealerships are over 1 hr away...

I paid under $26 /L for the Liqui Moly LM 2048 synthetic 75w90 gl5 gear oil...

Hopefully it lasts, although I think I'll change it out before 17 yrs this time....

Peter

 

Duplicate sorry

 

Oh, this was in Vancouver, and it was offered to me at wholesale rates through the independent shop I took the car to. The car was at least 10 years old and the mileage was so low, so I chose to flush out the old oil for new. I didn't track the car, so it didn't matter to me.