Brad Penn Oil
11-07-2017, 11:16 AM
#1
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Brad Penn Oil
I have been using them for a while because of ZDDP. Looks like they have been rebranded to Penngrade, their website never mention ZDDP addictive. That said SummitRacing mentioned it has ZDDP... Is it still a safe oil to use?
11-07-2017, 11:59 AM
#2
Nordschleife Master
11-07-2017, 03:37 PM
#3
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I just got a shipment the other week. It scared me when I saw the new label. But on the bottle it says it has the ZDDP. It's still the same green oil. Enjoy!
11-09-2017, 08:18 PM
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Administrator - "Tyson"
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All oil has ZDDP - yes, every single bottle of motor oil has ZDDP.
The issue is how much.
Way back most oils had over 1500ppm.
For most of the life of the 944 1100/1200ppm was the norm. Sometime around 2001-2002, new government mandates wanted to save catalytic converters so most new oils from there on out had 800/600ppm. This is where the trouble started.
Every synthetic 15/20w-50 and most non-synthetic I've found as the 1100/1200ppm ZDDP levels since these viscosities are not made for modern cars, they are not held to such standards.
The only area where ZDDP is needed is between the cam & lifter since 944's have flat tappet cams. This is really a much bigger issue in classic cars with very tight valve springs and radical cam grinds, but better safe than sorry.
The issue is how much.
Way back most oils had over 1500ppm.
For most of the life of the 944 1100/1200ppm was the norm. Sometime around 2001-2002, new government mandates wanted to save catalytic converters so most new oils from there on out had 800/600ppm. This is where the trouble started.
Every synthetic 15/20w-50 and most non-synthetic I've found as the 1100/1200ppm ZDDP levels since these viscosities are not made for modern cars, they are not held to such standards.
The only area where ZDDP is needed is between the cam & lifter since 944's have flat tappet cams. This is really a much bigger issue in classic cars with very tight valve springs and radical cam grinds, but better safe than sorry.