manual gear oil suggestions?

[JackG]

Originally Posted by Frank M

I still stick with the engineers.

Techs have opinions and usually not accountable, engineers are accountable.

I understand your position, except:

RMS seal failure. IMS bearing failure. D-chunk cylinder liner failure. Premature AOS and oil filler tube failures. Rear axle bearing failure. Etc, etc,...

All Porsche engineering failures. And they have NOT been held accountable.

[Frank M]

Originally Posted by JackG

I understand your position, except:

RMS seal failure. IMS bearing failure. D-chunk cylinder liner failure. Premature AOS and oil filler tube failures. Rear axle bearing failure. Etc, etc,...

All Porsche engineering failures. And they have NOT been held accountable.

All things have flaws and failures.

Imagine if techs designed cars.
Would anyone want to fly in an airplane designed by engineers or mecahnics.
Who would drive on a bridge designed by excavators.
Who would want to have their teeth drilled by the dental assistant..

[JackG]

Originally Posted by Frank M

All things have flaws and failures.

Imagine if techs designed cars.
Would anyone want to fly in an airplane designed by engineers or mecahnics.
Who would drive on a bridge designed by excavators.
Who would want to have their teeth drilled by the dental assistant..

All true, but...

Porsche doesn't "design" oil. They don't manufacture it, or even package it.

The guy that designed the tranny writes up a spec for it, and the lowest bidder gets a contract to supply it in a bottle that has the Porsche name on it.

Redline engineers design and produce nothing but oil. That's their field of expertise.

Hmmm... in a way, the Porsche oil is a bit like the bridge that was designed by the excavators.

YMMV.

[Frank M]

Originally Posted by JackG

All true, but...

Porsche doesn't "design" oil. They don't manufacture it, or even package it.

The guy that designed the tranny writes up a spec for it, and the lowest bidder gets a contract to supply it in a bottle that has the Porsche name on it.
:

Then why do lubes have a manufactures spec?
such as :

Mobil 1 0W-40 keeps engines starting in Arctic-extreme cold, and it cleans deposits, sludge and varnish often formed in high temperature operating conditions.

Mobil 1 0W-40 meets key industry and car builder specifications for:

− Mercedes MB 229.5
− Porsche Approval List 2002
− GM-LL-A-025 (gasoline)
− ACEA A3, B3/B4

− BMW Longlife 01
− VW 502.00/505.00/503.01
− GM-LL-B-025 (diesel)
− API SM/CF

[JackG]

Originally Posted by Frank M

Then why do lubes have a manufactures spec?
such as :

Mobil 1 0W-40 keeps engines starting in Arctic-extreme cold, and it cleans deposits, sludge and varnish often formed in high temperature operating conditions.

Mobil 1 0W-40 meets key industry and car builder specifications for:

− Mercedes MB 229.5
− Porsche Approval List 2002
− GM-LL-A-025 (gasoline)
− ACEA A3, B3/B4

− BMW Longlife 01
− VW 502.00/505.00/503.01
− GM-LL-B-025 (diesel)
− API SM/CF

It's called marketing.

Notice how Mobil 1 meets so many specs? That's because there's not 2 cents worth of difference between them, and it's not rocket science to meet them. But, as we know when it comes to getting a manufacturer's blessing (think Porsche approved tires), there's a cost involved in getting that blessing. Not having it doesn't mean you don't meet, or exceed it. As a manufacturer of oil, you pay for the privilege of putting that spec on your bottle. It's about money.

[Frank M]

Originally Posted by JackG

It's called marketing.

Notice how Mobil 1 meets so many specs? That's because there's not 2 cents worth of difference between them, and it's not rocket science to meet them. But, as we know when it comes to getting a manufacturer's blessing (think Porsche approved tires), there's a cost involved in getting that blessing. Not having it doesn't mean you don't meet, or exceed it. As a manufacturer of oil, you pay for the privilege of putting that spec on your bottle. It's about money.

I hope this isn't developing into an AMSOIL or REDLINE thread.

[JackG]

Originally Posted by Frank M

I hope this isn't developing into an AMSOIL or REDLINE thread.

Lord, no. Wouldn't want to steer it away from the "OEM only" thread it's become!