LUBRICANTS FOR THE PORSCHE 928, 928S, 928S4, GT AND GTS
08-02-2009, 05:47 AM
#17
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Unfortunately Doug has been asked questions repeatedly and it seems if he can't answer them he just disappears. It's been shown on a few occasions where he says on thing on one thread and then another elsewhere. The oil that Doug espouses has never been approved for use in these and other model Porsches. Use at your own peril.
If you want a good link to an oil thread here it is. Written by people with in the field experience.....
http://forums.pelicanparts.com/showthread.php?t=367300
If you want a good link to an oil thread here it is. Written by people with in the field experience.....
http://forums.pelicanparts.com/showthread.php?t=367300
110 race days, one engine, 25 race days new stroker engine.
08-02-2009, 07:05 PM
#19
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20w50 is an approved oil for any 928 depending upon the temperatures encountered by the car.
Don't believe me? Check your owner's manual.
For a car driven only occasionally during the deepest cold of winter, it would perhaps be best to switch to something lighter for the cold months.
Folks can lookup the Pour Point for any oil they'd like to use and make their own decision.
08-02-2009, 07:14 PM
#20
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If you want a good link to an oil thread here it is. Written by people with in the field experience.....
http://forums.pelicanparts.com/showthread.php?t=367300
http://forums.pelicanparts.com/showthread.php?t=367300
08-02-2009, 07:17 PM
#21
Race Director
This is simply incorrect.
20w50 is an approved oil for any 928 depending upon the temperatures encountered by the car.
Don't believe me? Check your owner's manual.
I run 20w-50 Dino Juice in my '89 as well as some other non-928s. It's fine.
For a car driven only occasionally during the deepest cold of winter, it would perhaps be best to switch to something lighter for the cold months.
Folks can lookup the Pour Point for any oil they'd like to use and make their own decision.
20w50 is an approved oil for any 928 depending upon the temperatures encountered by the car.
Don't believe me? Check your owner's manual.
I run 20w-50 Dino Juice in my '89 as well as some other non-928s. It's fine.
For a car driven only occasionally during the deepest cold of winter, it would perhaps be best to switch to something lighter for the cold months.
Folks can lookup the Pour Point for any oil they'd like to use and make their own decision.
great article that brings up some interesting points.....
However as Dave mentions....every 928 owners manual recommends 20-50 oil unless you live in a very cold climate......that is what the engineers who DESIGNED the engine wanted..... & given the success of race 928's and street cars with 100's of thousands of miles using 20-50....I'll stay with that.....
10-60w does look very interesting.....thats what my M3 V8 uses & burns very little oil too.....kinda odd that a new design engine would spec such a "heavy" oil and still have all the variable cam timing...since I know some of the newer vario-cam Porsche engines MUST have lighter oil for the variocam to work?
08-02-2009, 07:29 PM
#22
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Perhaps. If it has enough ZDDP in it.
That's what the thread 333pg333 post starts-off talking about. ZDDP.
We've covered it here in several threads too.
As there's no process (that I'm aware of) whereby folks on Rennlist can come to a consensus and/or agree to a list of specific oils according to objective criteria, these oil threads are going to be with use once or twice a year from now on.
That's what the thread 333pg333 post starts-off talking about. ZDDP.
We've covered it here in several threads too.
As there's no process (that I'm aware of) whereby folks on Rennlist can come to a consensus and/or agree to a list of specific oils according to objective criteria, these oil threads are going to be with use once or twice a year from now on.
