Trans Axle Oil
 

I changed my trans-axle oil today. I now have an opinion on two products. Which do you prefer, brand "A" or brand "B" ?

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Brand A, Porsche.

Well i will be doing the same thing in a matter of days. So what do you think is better? I will be waiting on your response.

Also where did you get the brand A from? The Porsche dealer here doesn't even carry it. He told me to use Mobil 1. I didn't like that response.

If the Porsche brand is not synthetic I'll go with the Royal Purple.. :cool:

The Porsche gear oil is full synthetic and out performs all other lubricants - including a non Porsche approved oil like Royal Purple.....
The OPC filled my gearbox with Mobil 75W90 when I bought the car @ 60,000 km - I was never really happy with the cold gearchanges, so at 70,000 km I replaced the lube with the genuine Porsche oil - a real improvement in shift feel and quality.
Its not cheap, but it lasts for 90,000 km, so it has to be good !!
No alternative oils for me....

Suncoast:
Manual Transmission Fluid - 75W - 90:Porsche Parts & Porsche Accessories - Wholesale Porsche Parts & Tequipment - Cayman Panamera Cayenn

Hands-down the Porsche oil is much better, especially when the system is cold. With Royal Purple going into second was always stiff before the motor warmed-up. With the Porsche oil shifting is smoother in all gears and the down-shifts are better, plus it doesn't have the pungent odor that other gear lubes have!

Porsche is my preference but somewhat expensive - what a surprise! :rolleyes:

I used swepco 210 and had the same result as Jager. Works fine for me when hot, but cold mornings are not so smooth, definitely worse than the OEM fluid.

My choice .

Redline 75W90 @ 90K Feels Good but no cold weather here in NC. Not sure about up north.

My 01 has Royal Purple in it, no issues.

I did the Porsche Gear oil in my 2000 Boxster @ 93K miles. I went back and forth on what to use. Bottom line: A decent synthetic gear oil was pushing $20/liter while the Porsche stuff was $28/liter plus ($10 shipping for 3 liters). Given I'll most likely never have to do this job again, I figured the OEM stuff was the way to go, given the delta in price of $34.

Exactly - most people will sell the car long before the Porsche oil goes out of spec.
Ummm, what am I saying - maybe a cheaper lube will suffice for most (?) people anyway,,,,,,
Its just that as you get older, quality really counts !!

I'm heading that way myself. I used RedLine 75W90 when I changed both the Boxsters trans lube last time. Good stuff, but they are a little stiff when cold. Going OEM Porsche trans lube next time.

My dealer wants $67 a bottle for "their" product. I have a hard time believing that there is not an identical product under a different name. Porsche is not in petroleum business. Maybe they had a custom formulation put together, but I have my doubts...

I don't care what's in it, with tax just the fluid came to ~215$ and change, that is offensive.

A For Amsoil
 

Brand A…Amsoil!

Running it with great results in engine and tranny. I got it for the price of regular Valvoline at Autozone! If you become a dealer they will give you even better prices. I got 3 quarts of Amsoil Synthetic 75w-90 transmission fluid shipped to the house for only $45.

Based on wear tests this is a superior product. Check it for your self! Hopefully, I can own the car long enough to change the tranny fluid again!

Thanks for the thread!

shadrach74: $67/Liter is crazy! One problem I found was most dealers only had 20L containers...

Try Suncoast Porsche in Sarasota, FL (google Suncoast). I've had great luck with them and purchased the gear oil for $28/L. Figure about $10 for shipping.

I also have an extra, unopened liter I available if you are interested.

PM me.

Try Sunset Porsche in Beaverton, OR. All parts are on a cost plus basis, great service and pricing.

TITAN SINTOPOID 75W-90 synthetic axle fluid from Pelican Parts

Titan Sintopoid is not the oil for cold climate areas. Until the tranny warms up it is so hard to shift. Crunches and get you wondering if something is wrong with the tranny. Did not have that with the old oil that was in the car. Switching to Porsche fluid.

I had my local shop use original Porsche oil when the shift arm was backing out of the transaxle and I had a small leak (and poor shifting). Oil re-fill was about $200 + $100 labor.

28 bucks a liter times 3 and DIY. Add few bucks for the plug seal. $90 tops.

One more note about the Amsoil…

It is GOOD on COLD shifts! First to second is no problem, even when cold.

Feels better than whatever was in there before, most likely Porsche stuff. Very good on HOT days too! Have not missed a shift since I have run this stuff. It seems to "slide" into gear easier. At a stop the gearshift moves with little effort (NOTE: that may be more indicative of gear wear than actual lubrication however).

We'll see how it looks when I have to replace it in another 60k miles!

@JD - can you get that oil by the liter? :D