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Gear Lube wanted- where to source Mobil PTX 75W-90

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Old 12-06-2007, 05:54 PM
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Default Gear Lube wanted- where to source Mobil PTX 75W-90

So Monolube SHC ( MobilLube SHC 75W90), now called Delvac SHC is the latest gear oil that Porsche has been using in the Cup car boxes.
You can get it here I think: http://www.pfifilter.com/compressoroilpartnumbers.php

But I think for stock gears (non-steel synchros) this appears to be the better choice according to some here: Mobilube PTX 75W-90

Does someone have a source for the PTX- I can't find one.
The place above has a non-Mobil substitute but similar viscosity oils are not created equal ( as a student I worked for 5 summers at a Gulf refinery in a quality control lab testing Gulf products vs competitors- interesting job while it lasted). But I digress.

TIA
Old 12-06-2007, 08:51 PM
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Ritter,
I purchased the Mobilube SHC from Lüfteknic.

Andreas
Old 12-07-2007, 12:36 AM
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Thanks- do you like it- hows the shifting?
Old 12-07-2007, 08:01 AM
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The shifting is great. I drained the factory fill at around 40,000 miles and replaced it with the SHC. No issues.

Andreas
Old 12-07-2007, 11:14 AM
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Ordered- thanks!
Old 12-07-2007, 12:35 PM
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David, did you order SHC from Luftenic? Their web site said they are out and that SHC has been replaced with Delvac 75W-90.
Old 12-07-2007, 01:33 PM
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Precisely- one has replaced the other.
Old 12-07-2007, 09:03 PM
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Hi, I just replaced the front diff and gearbox oil with Castrol Syntrax 75w/90, full synthetic oil GL5 spec and the gear shifts are spot on.
Old 12-08-2007, 09:46 AM
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Good to know .



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