THXBABE

Better answer soon - she's got a gun!

BC

He is probably suggesting that Mobil 1 not be used, and possibly even NOT a 0 weight oil. Chain running wear is a different sort than bearing sliding. Both are lubed by the same oil. So obviously some conditions need to be met in the oil for both situations.

Macster

and noise. For instance, while diamond chain guides would be (theoretically anyhow) long wearing the chain noise would be (I believe) intolerable.

And it does no good for a chain guide to be long lasting if its long life causes accelerated wear on the chain that runs against it.

Years ago I worked in an optical lab grinding optical lenses. What I noticed was that in the case of the cylinder finishing machines these had a lens holder that moved the lens in a pattern over the finishing tool. At the same time a flood of the proper abrasive was directed to the lens/tool interface.

While the inner workings of these machines were sealed to guard against any of this abrasive compound making it into the machine's inner workings the seals were not perfect.

There was invariably some of this abrasive that made its way into the sliding bearings of these machines.

What I found is the much softer nylon sleeve bearings would be hardly worn at all but the hardened stainless steel shafts (Thompson rod material, case hardened to approx. 60C Rockwell to a depth of around 1/16th of an inch) would be worn sometimes through the case hardened layer down to the softer material underneath.

What was happening was the softer nylon material held on to the grains of abrasive material and acted as emory cloth (after a fashion) and worn the hardened shafts.

(And this was hammered home too in my later work/experience with telescope mirror and optical flats).

The above to make my point that a harder guide material might cause accelerated wear of the chain. OTOH, with a softer guide material it wears until it adapts a profile that results in almost all of the contact occuring between it and the chain by the chain rollers, which if there's any friction will roll rather than drag and thus wear is essentially reduced to zero barring any lubrication issues.

However, based upon your comments there appears to be some durabilty issues with the chain guide material, that even if it doesn't fall prey to mechanical failure (fracture, etc.) it will at some point wear out.

Sincerely,

Macster.

Turboflyer

I was referring to your engines. I have been a loyal fan of Mobile 1 for many years. I know it has gone through an evolution or de-evolution one could say. I am open to better ways of doing most anything to include oil. You could never make enough money just re-selling oil, so when you put your experience and company behind the engines you build the oil you recommend carries a lot of weight. You already have my next engine order when needed. So lets get the secret on the streets.

Jake Raby

The problem with any other recommendation is the flack thats created when contradicting Porsche's recommendations.. Thats something I have zero time for..

The best way to get our oil recommendation is to buy the engine from us, then we monitor your oil samples and provide updated recommendations on oil as the elemental composition changes.

All I am willing to say is we don't use Mobil 1 :-) I am not trying to be secretive, just trying to stay away from lubricant related debates..

THXBABE

Playing hard to get eh?

Jake Raby

Nope, just trying to stay out of trouble... All it takes is recommendation that **alledgedly** leads to an engine failure to cost me a lot of money..

But more than that it only causes debates that no one can win. Oil is THE MOST critical topic, responsible for more debates than most anything else..

Steve Weiner-Rennsport Systems

You are a wise man, indeed.

I too, don't use nor recommend that stuff anymore for all the same reasons but this subject shares everything with religion & politics.

D.C.

YIKES !!!!

Now I am really worried. I use Mobil 1 in all my cars.

I must say that I understand your position, but to make that statement and not provide an alternative recomendation, is not very nice.

It might have been better off to say nothing.

Having said that, I would welcome a PM with a recomendation.

I do not wish to debate, or discuss, I only want to drive my cars without worry. I do have a great respect for your opinions (Jake and Steve). Please share.

Jake Raby

But its only worse...

MikeBat

With all the contradictory information out there on oil.... I am thinking of changing to Olive Oil.

Hopefully my oil change frequency of half the recommended (Porsche) time will save me from some of this misery.

Turboflyer

Ah, yes oil analysis. I use it on all my performance vehicles. Actually only two. A carry over from my aviation days. I personally use BlackStone Labs. Good folks. From what you said earlier I was going to ask them to look for any traces of the tension block pads in my next sample. I am pretty **** so I also have all the filter elements from every oil change. I inspect them as well for any visual particulate matter. None found so far. Since I do not have a pad handy, what material should we be looking for.

Jake Raby

I have used Panama Jack suntan oil in an engine that I tried to blow on purpose.. It ran for 5 minutes at WOT and never had a failure except the camshaft snapped in half.

perfectlap

Do you have contact info for them? And how much do they charge for this oil inspection?

I've been hearing that lifter tap on start up lately so its got me wonderin' about oil.

Turboflyer

BlackStone Laboratories link:
http://www.blackstone-labs.com/