manual transmission gear oil

[zukizilla]

I have a concern. I'm thinking of changing my gear oil in my 2001 Boxster S a 6 speed manual transmission. I have read that some people are having problems re-installing the reinforcement plate after removal. Is this a project I should attempt myself or take it to the dealer?

Thanks,

Mike

[RFM]

The best way to install is with the wheels off the ground, car on jack stands or lift. It's not so difficult but i do not know your options.

[zukizilla]

The best way to install is with the wheels off the ground, car on jack stands or lift. It's not so difficult but i do not know your options.

I was thinking of using ramps and lifting the back of the car. I have heard that the frame or suspension may twist a little after the removal of the reinforcement plate making it quit diffcult to re-install.

[RFM]

The key is that the rear wheels are free of pressure, other wise the rear sub frame will deform too much and than it become difficult to reinstall the plate.

[zukizilla]

The key is that the rear wheels are free of pressure, other wise the rear sub frame will deform too much and than it become difficult to reinstall the plate.

Thanks,

Do you think jack stands would be the way to go?

[Boxsters]

Hello,

Can i ask you what gearoil you are going to use ?

And is the 6 speed gearbox the "same" for a boxster 2008 Model

and also with the same Oil Specification ?

/ Best Regards

[zukizilla]

I'm not sure about the 2008 gearbox. I thinking of using Amzoil Severe Gear 75W-90.

Mike

[geoff22]

I'm not sure about the 2008 gearbox. I thinking of using Amzoil Severe Gear 75W-90.

Mike

Mike,

I bought a 2001 2.7 Boxster last summer, and although it was shifting fine, I decided to changer the transmission oil. I went with the Amzoil 75/90 and ever since the car is difficult to to get into 1st and 2nd gear until the engine warms up a little. It's a little annoying, but I'm living with it. Next time I'll go with the Mobile One. I'm assuming that's what was in there before, but all I know is that the car had been maintained by the porsche dealer up until I bought it.

Geoff

[JFP in PA]

I'm not sure about the 2008 gearbox. I thinking of using Amzoil Severe Gear 75W-90.

Mike

Mike,

I bought a 2001 2.7 Boxster last summer, and although it was shifting fine, I decided to changer the transmission oil. I went with the Amzoil 75/90 and ever since the car is difficult to to get into 1st and 2nd gear until the engine warms up a little. It's a little annoying, but I'm living with it. Next time I'll go with the Mobile One. I'm assuming that's what was in there before, but all I know is that the car had been maintained by the porsche dealer up until I bought it.

Geoff

The factory fill is a unique full synthetic product, produced to Porsche specs, which has no aftermarket equivalent. Gear oil manufacturers, at least the honest ones, have said repeatedly over the years that they do not produce an equivalent due to the unique specs. The rest say they "have something that works"............... We have only used the OEM fill in client's cars, and have never had any issues. We have also drained M1, RP, Redline and other makes out of cars that were having shifting issues, refilled them with the factory stuff, and all the problems promptly went away. Always be cautious when dealing with aftermarket blenders, to say the least, they tend to stretch the facts more than a little.........

[Stefan]

I send JFP's comments. I replaced the factory fill in my 1999 Boxster with RedLine. I read all about it online and spoke to a RedLine rep who insisted that it would work well. Nevertheless, shift quality was noticeably worse. I gave it about 10k miles then gave up and went back to factory fluid and the problems have completely gone away.

[zukizilla]

Thanks for all the input. I think I'll go with the factory fluid.

Mike