Mobil One Vs Royal Purple
02-22-2015 | 12:48 PM
#17
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Racer
Joined: Feb 2015
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From: Portsmouth, NH USA
Thanks !! I e-mailed them ( RP)asking what if anything they had was " Porsche approved" and what they recommend for my soon to be new baby.
02-22-2015 | 12:58 PM
#18
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Racer
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From: Portsmouth, NH USA
One of the difficulties in this is you will likely not see "benefits" or "drawbacks" while you own the truck. From what you posted, it looks like you have gone through cars rather quickly. It could be 150k miles or more before you would see the negative or positive repercussions of going against manufacturer recommendations. Maybe you'd hit those high mileage numbers based upon your driving history... But Porsche does bench testing in house simulating hundreds of thousands of miles "driven" (or more) and make recommendations based upon those results--not just the engine "idles quieter."
People get very passionate about a product which has "always" worked for them... Even though the majority of time, from my experience, there is zero qualitative data supporting their "results." Case in point, my grandfather who has put Marvel Mystery Oil in his '83 Benz diesel since birth, so naturally that is why the car has made it to 600,000 miles (and counting). One data point does not make an argument to blaze your own trail in the care of your car's engine when the manufacturer did the qualitative testing for you already.
Sounds like you're sticking with something from the "approved" list, which is good.
Good luck.
People get very passionate about a product which has "always" worked for them... Even though the majority of time, from my experience, there is zero qualitative data supporting their "results." Case in point, my grandfather who has put Marvel Mystery Oil in his '83 Benz diesel since birth, so naturally that is why the car has made it to 600,000 miles (and counting). One data point does not make an argument to blaze your own trail in the care of your car's engine when the manufacturer did the qualitative testing for you already.
Sounds like you're sticking with something from the "approved" list, which is good.
Good luck.
I've heard of the Cayenne holding up well, but just dumb things failing. I've gone ahead and ordered the OEM fix for then driveshaft issue just to keep in my garage, I always carry 2 quarts of oil with me tucked into the sparetire area, tow straps, airpump, etc because of the amount of time I am on the road and sometimes I just want to be home and I'll do a dinner meeting until 9,10,11,12 at night and just drive however long home. AAA and either factory or extended warranty always ready.
I agree, which is why I posted the question. 1: I don't like mobil as a company, 2: always open to suggestions , 3: tend to always go a few notches above factory recommendations" if I can just because I have been a person that believes " you get what you pay for". Just my 2-cents
02-22-2015 | 03:41 PM
#21
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Racer
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From: Portsmouth, NH USA
02-22-2015 | 06:30 PM
#22
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From: wind-swept heights...
Just found this doc, it's from 2006, but interesting http://www.animegame.com/cars/Oil%20Tests.pdf
02-22-2015 | 10:59 PM
#23
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Aside from Porsche warrantee issues; RP and Redline are true synthetics (unlike Mobil 1). Both are excellent oils and I’m sure either one would exceed the Mobil 1 specs. Porsche specs M1 because of contractual deals that are more about money than quality...
02-23-2015 | 12:57 AM
#25
Three Wheelin'
Joined: Jun 2011
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From: Denver, CO
This is a good chunk of the reason so many Cayenne drivers run near the bottom end of the oil consumption curve. It doesn't take much for a car that has a factory approval to run 5W50, to burn through 0W30.
02-23-2015 | 07:42 AM
#26
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From: Lansing Michigan
02-23-2015 | 11:09 AM
#27
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From: wind-swept heights...
Mobil1 shearing down to a 0W30 after 5K miles isn't enough? If you sampled M1 at 5K miles in your car, it would be classified as a 0W30. M1 0W40 is on the very low end of what you should be running in a Cayenne given that the range is 0W40 up to 5W50.
This is a good chunk of the reason so many Cayenne drivers run near the bottom end of the oil consumption curve. It doesn't take much for a car that has a factory approval to run 5W50, to burn through 0W30.
This is a good chunk of the reason so many Cayenne drivers run near the bottom end of the oil consumption curve. It doesn't take much for a car that has a factory approval to run 5W50, to burn through 0W30.
I am not against going outside the box on this and other maintenance items, there just needs to be a good reason. Is M1 5W50 adequate for the 955? Or is that article posted above (PDF) considered the definitive oil testing?
02-23-2015 | 11:22 AM
#29
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From: Lansing Michigan
Anyone see the below video? I would be interested in seeing Shell Rotell T6 vs the Mobil in a similar test. I'm pretty disappointed in RP's oil in that test below!
Last edited by Dan87951; 02-23-2015 at 06:24 PM.
02-23-2015 | 11:30 AM
#30
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From: wind-swept heights...
That article was very interesting -- just finished it. Definitely has me skeptical about M1 right now. Subscribed to this thread to learn what the RL experts have to say...