Quote:
Originally Posted by Gelbster
The formulation of Mobil 1 has changed significantly since it was originally recommended by Porsche for the M96.
Check the JGDT40 threads and Bitog site for specifics.
Tribology has advanced a lot since the 1990's ,so it is possible to spec an oil more closely to the M96's peculiar needs now than it was 20+ years ago. These criteria become more important as the miles accumulate on an M96 ?
Just compare the specs of the Old vs.New Mobil 1 and JGDT40. Significant differences .
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^ Bingo.
We have heard from people who take these engines apart AFTER 100K miles, and they all seem to be on the same page. If you can budget for a better quality oil, you definitely want to do so. This isn't a Jetta.
And none of these engine experts are wild about Mobil 1 on these older cars. The Tony Callas piece in Excellence Magazine some time back was interesting to me. Here is a magazine that is heavily "influenced" by having a good
relationship with Porsche (and their official oil) and they still printed his opinion that "mass market" oil are not such a great idea anymore as they see fewer and fewer protective additives going in. And not surprisingly.... the prices have been coming down, even before this (temporary) crude oil collapse. Meanwhile those protective additives.... yep still expensive.
Like anything else in life, as the engine gets older, it needs more looking after. When you've got a brand new engine and you're getting every one of the ponies you paid for, the old Mobil 1 was probably okay (so as long as you drove the car frequently and didn't let it sit). As it gets older it needs some extra protection. Buying oil you'll change once a year, in most cases, on the basis of which is the cheapest acceptable option is nuts.
What's worse is if you register low mileage and the car sits for long stints, then the cheapest acceptable option isn't really worth the $50 you saved and spent on dinner that night.
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