15W50 not recommended!!!
#1
Drifting
Thread Starter
15W50 not recommended!!!
Have you guys seen this?
Porsche issued a bulletin not recommending this weight of oil!
http://www.pca.org/tech/tech_qa_question.asp?id={34806DB8-D9B5-4009-A164-5AB49431B447}
Porsche issued a bulletin not recommending this weight of oil!
http://www.pca.org/tech/tech_qa_question.asp?id={34806DB8-D9B5-4009-A164-5AB49431B447}
#3
Addicted Specialist
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Though this may be the "official" dictum by the powers that be, this issue has been discussed many times over in the past. From what I've gathered, it "seems" that the motive is so that PAG can limit their "recommendations" (and liability) to one product and thus limit their "work," as it were. No more need to ask about climatic conditions, driving conditions, what year 911 you own, or the like. Nope, just use this one brand and weight, change it every 15K miles, and you'll be fine. Right. Yeah. Sure.
Reiser's response accurately notes that one's climate should be considered when determining one's choice of weight. And of course, that silly little point about whether one has hydraulic lifters or not! My own opinion is PAG has almost completely abandoned it's desire to support anything prior to the 9x6 models, and this recommendation ("revelation") of 0w/40 is evidence of that. Tighter tolerances in the wasserboxer and cold-climate users (under warranty) results in more service personnel "fixing" their "problems." So easy fix: recommend one size-fits-all and everything is good! Yeah. Right. Sure.
...rant off
Edward
Reiser's response accurately notes that one's climate should be considered when determining one's choice of weight. And of course, that silly little point about whether one has hydraulic lifters or not! My own opinion is PAG has almost completely abandoned it's desire to support anything prior to the 9x6 models, and this recommendation ("revelation") of 0w/40 is evidence of that. Tighter tolerances in the wasserboxer and cold-climate users (under warranty) results in more service personnel "fixing" their "problems." So easy fix: recommend one size-fits-all and everything is good! Yeah. Right. Sure.
...rant off
Edward
#4
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I'm confused! My car has gone over 60K miles, exclusively on 15W50, and hyrdralic lifters are quiet and seem to work perfectly, even when cold in the morning. Anyone here think 0W40 would be better?
#6
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Dennis...your just fine. Where did you go for the oil...any good deals? BTW, how is your flush going...got it back together yet. Let's get Scott for coffee this weekend.
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#8
I have always used M1 15w50, but recently switched to M1 5w40 for street use, saving the 15w50 for track use.
I can't saty that I have noticed much if any difference, but the cars are only driven on nice warm days.
Now my S4 gets M1 0w40, it needs it
I can't saty that I have noticed much if any difference, but the cars are only driven on nice warm days.
Now my S4 gets M1 0w40, it needs it
Last edited by Bill Verburg; 11-18-2005 at 06:43 PM.
#11
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Dennis...PM me your phone #'s again, I had to replace my cell phone and all my numbers went with it...Let's try Sunday morning if you are finishing tomorrow. Good luck, sorry I can't come over and help, but my daughter gets in for the Thanksgiving week.
#12
Rennlist Member
It all depends on where you live. Try starting a 993 in Detroit during Jan-Feb with 15-50.
Your starter will beg you to drop viscosity.
Now if you live in South Florida, 15-50 is way.
BTW in bike racing, Lower Viscosity=Higher HP and Quicker Rev ups. Chris
Your starter will beg you to drop viscosity.
Now if you live in South Florida, 15-50 is way.
BTW in bike racing, Lower Viscosity=Higher HP and Quicker Rev ups. Chris
#13
Burning Brakes
OK what the heck I'm gonna chip in here. I know Castrol seems to be a dirty word on at least some of the forums but Castrol Syntec 5W/50 seems like a good possible option. It's on Porsche's approved list, last I checked. There's some question about whether the 5W is for real, the 50 seems to be accepted as the real deal, but you guys with hydraulic lifters in cold climates might wanna consider it. I switched my 130k+ 964 to it from dino Castrol 20W/50 a while back, no increase in leaks, some small decrease in running temps at speed, no hydraulic lifters to worry about so no data there, but so far I'm content with the change. No affil, no nuthin', just one guy's opinion. And it does get cold here.
#14
#15
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Steve Weiner recommends 20/50, except in cold climates. He has a great deal of experiencing in rebuilding these motors. He is highly respected on this board.
chuck
chuck