You actually have 15k more miles on your 04 C4s than I do!!

As for the oil debate, I'll just read whatever Mr. Hillary has to say, and follow that advice.

 

And all this from a guy who says that valve noise at startup is perfectly fine as long as it goes away in 30 seconds. (remember, your previous post remain accessable to all). Sorry, but ANY metal to metal contact causes wear.

I kinda like the way you can lump a 0W40 and 5W40 into both being a SAE40 oil, yet a 5W50 and a 15W50 are NOT both SAE50 oils. Funny stuff Doug.

But like you suggested, why debate, those who care will find the right answer on their own.

 

1999Porsche911, I'm still waiting to hear your reply from the last oil thread. The thread where you stated "Secondly, rather than living your life reading and following the opinions of others, why not actually do some testing. Then, whatever your position is, at least you have some data to back it up."

I assume this means that you "have done some actual testing" and "at least have some data to back it up".

You continue to advocate different oil for our cars. What evidence do you have to support your position on the proper oil for Porsche 996's? What sort of testing have you done on the Porsche 996? How do you explain those that use one of the oils that Porsche recommends and have no oil pressure problems, do not burn oil, and don't have any valve clatter? What is your answer to published reports by independent Porsche experts that the VarioCam plus system in later cars require "lighter" oil to function properly?

I will not argue oil with you as I am not an engineer or an oil expert. However, you claim to have 35 years of experience. I would simply like to hear any evidence you have (from your testing) that Porsche engineers are wrong? (Hopefully evidence beyond pointing to any number of problems that occur to some people on this board and stating that it must be the oil.)

I am not posting this thread in a negative manner. I would genuinely like to understand why you feel the current Porsche list of recommended oils is wrong.

 

Doug, that was a fantastic post and extraordinarily insightful. Until reviewing the data, I had no idea how dymanic 0W-40 motor oil was. Living in NY, I get my fair share of cold starts (colder than freezing) now and again even though
I park in a heated garage. Clearly your data revealed that the OEM recommended fill is the way to go. What was was most exciting however, was the fact that it stayed very competive as a lubricant with 15W-50 at the high temps that you posted. Dare I say that you have closed this case. Any of the other comments are just hearsay and anecdotal evidence. You viscosity measures set a very high bar in this debate!

Thanks a bunch.

 

Just what does Porsche stand to gain or lose by using one oil over another? They simply recommend the weight that they think works best. I just feel like you keep skirting the issue here. I presume that you don't like to use Porsche's recommended octane either? Nor their coolant? From the 'data' that we've read here, and the notion that tighter clearance engines require a more fluid oil, 0W-40 seems a no brainer unless you're driving on the surface of the sun.

Why not just use pure SAE-40 or SAE-50 then? Accordingly to your logic, they would stay on the engine even longer, "reducing engine shear at startup".

I'm not trying to nitpick you; it just seems that you've not posted any data to substantiate your claims. Can you post before and after photos of engines that have used the different weights of oil?

 

Edward, IIRC, this is something that he has addressed and does NOT use the PCNA rec'd coolant but rather change it more frequently using mainstream stuff from Auto Zone, etc..

In all reality though, this "lifetime" coolant we have in our cars really isn't "lifetime".

 

Correct Dell. I use Peak Lifetime and change 2 gallons with every oil change. http://www.peakantifreeze.com/peak_g...time_5050.html


BTW: I just got back from Chapel Hill yesterday. I was only there for 5 hours on my way back from Miami.

 

Next time in town, shoot me a PM. I'd be down for a drink, lunch, etc.. Heck we can even talk about oil if you want

 

I thought about it, but I was only there a few hours and had to drive back to ChiTown by yesterday. Didn't feel like getting any nails in my tires, either.

 

 

Yet another bombing run in 1999Porsche911's ongoing oil crusade.

He visits a thread tells everyone they are using the wrong oil and leaves with no substantiation for his claims.

 

Are we done yet?

 

...that is because there is NO substantiation for his claims...it is all opinion and conjecture...not a shred of real world testing or results. and all experts results and opinions are dismissed as worthless.

 

I use Mobile 1 oil that flows at the same rate as Aunt Jemima Pancake Syrup (Butter Flavored). Do you think I am hurting my Porsche?

BTW - the Pancake Syrup tastes better than the oil.

Also, I need to change the Winter air in my tires to Spring air. Should I go to the Porsche dealer to get that done or can a tire shop do that for me?

 

Do we really need to hijack this thread?

I say start a new thread with that question, it's easily good for 4 or 5 pages... oh yea and mention you want to use N02 instead of air.