Mobil 1 Rebate

[VFX]

OK I may be a little naive here & I don't pretend to know anything about engines & lubricants, but I just had a service from MCL Porsche Vancouver & they used M1.
In fact my car has had M1 from the official Porsche dealer from factory until now.

Why would Porsche still keep using M1 if it is bad for my engine?

[Perfectlap]

^ well if they stopped using it because they didn't like the new formulation, that would probably open the door to the lawyers representing Porsche owners with fried engines.

[Jaxonalden]

Like Brucelee wrote, "Porsche specs a 40 wght oil for this engine, not 10W-30". I don't know where people get 10W30 is OK, except from other cars. Ours specifically states 0W40. There’s one thing I've always been told, you can swap oil manufactures but not oil weights.

BTW, last night I gave my Boxster 9.25 quarts of the good stuff, Royal Purple 0W40 at the cost of $100. Worth every penny.

[70Sixter]

The approved list on the TSB does not have one 30 weight. There are 0W-40, 5W-40, and 5W-50 weights approved for worldwide or USA/Canada.

Most are Mobil 1, but there are four Total Quartz and Activa oils, including a 5W-40 diesel oil.

I'm going back to 5W-40 when I change my oil and filter next month. Probably will go with the LN adapter for spin on filters.

By the way, the approvals have expiration dates, tho manufacturers can request and sometimes receive extensions. Two M1s expire late this year.

[jmatta]

+1 on the Royal Purple. Charles Navarro at LN recommends 5W40 over 0W40, due to it's stronger foundation. I've run 5W40 and 10W40 Royal Purple, as my car only sees warm weather. After reading all the current write-ups, I may go back to the 10W40, as the base oil is exponentially different from 0W, all the way to 10W.

[Perfectlap]

Originally Posted by jmatta

+1 on the Royal Purple. Charles Navarro at LN recommends 5W40 over 0W40, due to it's stronger foundation. I've run 5W40 and 10W40 Royal Purple, as my car only sees warm weather. After reading all the current write-ups, I may go back to the 10W40, as the base oil is exponentially different from 0W, all the way to 10W.

What's a good price for Royal Purple per quart? I see them on Ebay with free shipping. Just ordered a couple of Mahle filters. Time to rinse and repeat.
Otherwise I'm going to see if I can find some Castrol Syntec locally.

Originally Posted by Perfectlap

What's a good price for Royal Purple per quart? I see them on Ebay with free shipping. Just ordered a couple of Mahle filters. Time to rinse and repeat.
Otherwise I'm going to see if I can find some Castrol Syntec locally.

PL, I may try RP some day. Been using Red Line for about 3 years now in the Boxster. 5W40. It costs about $9.00/quart. Plus shipping. RP is comp in $$.

This may help too:

http://royalpurple.findlocation.com/

[cas951]

Originally Posted by 70Sixter

The approved list on the TSB does not have one 30 weight. There are 0W-40, 5W-40, and 5W-50 weights approved for worldwide or USA/Canada.

Most are Mobil 1, but there are four Total Quartz and Activa oils, including a 5W-40 diesel oil.

I'm going back to 5W-40 when I change my oil and filter next month. Probably will go with the LN adapter for spin on filters.

By the way, the approvals have expiration dates, tho manufacturers can request and sometimes receive extensions. Two M1s expire late this year.

10w-30 are listed in the owners manual. This depends on year.

[70Sixter]

Originally Posted by cas951

10w-30 are listed in the owners manual. This depends on year.

Don't go by owners manual when Porsche issues approval in a regularly updated TSB and the approvals all have expiration dates.

You can read TSBs at RennTech if you are a contributing member. I highly recommend RennTech membership. It is pure tech w/o the OT fun and games. Access to a lot of documents.

Also the approved list I posted earlier was not all inclusive, just a sample showing the Mobil numbers relative to one other company.