Motor Oil
06-14-2010, 11:51 AM
#2
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Hey Greg, pass the salt.
06-14-2010, 12:03 PM
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I just switched to Royal Purple 10W40. The car has responded to it very well.
Roger from 928's R Us said he installs it in his customers's cars and his own. He runs 20W50, though.
Roger from 928's R Us said he installs it in his customers's cars and his own. He runs 20W50, though.
06-14-2010, 12:17 PM
#6
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Oooooo. Save me a seat for this one.
06-14-2010, 12:24 PM
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Kidding aside, I've not had good experience with Royal Purple. On a hot day I lost significant oil pressure. It was scary to see 3 bar at 4k RPM. Mobil 1 (15w-50) has also had similar breakdown, but not nearly as sever. Still kept slightly above the 1 bar per 1k RPM standard.
The key is themal integrity and ZDDP. There are only a handful of oils that have both of these. Mobil1 15w-50, Redline 20w-50, Valvoline VR1 (synthetic or conventional) 20w-50, Amsoil 20w-50, and Brad Penn 20w-50 . I think I will switch to Valvoline VR1 next oil change - to see if it holds up better than the Mobil 1, and becasue it it more readily available than Amsoil and Redline.
Final note, don't use the synthetic blends. You don't know if it's 1% synthetic or 99% or somewhere between. If you want to go with conventional, I think Valvoline VR1 is the only conventional oil (that I know of off hand) with elevated ZDDP levels that our cars need.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
The key is themal integrity and ZDDP. There are only a handful of oils that have both of these. Mobil1 15w-50, Redline 20w-50, Valvoline VR1 (synthetic or conventional) 20w-50, Amsoil 20w-50, and Brad Penn 20w-50 . I think I will switch to Valvoline VR1 next oil change - to see if it holds up better than the Mobil 1, and becasue it it more readily available than Amsoil and Redline.
Final note, don't use the synthetic blends. You don't know if it's 1% synthetic or 99% or somewhere between. If you want to go with conventional, I think Valvoline VR1 is the only conventional oil (that I know of off hand) with elevated ZDDP levels that our cars need.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
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06-14-2010, 12:35 PM
#8
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Kidding aside, I've not had good experience with Royal Purple. On a hot day I lost significant oil pressure. It was scary to see 3 bar at 4k RPM. Mobil 1 (15w-50) has also had similar breakdown, but not nearly as sever. Still kept slightly above the 1 bar per 1k RPM standard.
The key is themal integrity and ZDDP. There are only a handful of oils that have both of these. Mobil1 15w-50, Redline 20w-50, Valvoline VR1 (synthetic or conventional) 20w-50, Amsoil 20w-50, and Brad Penn 20w-50 . I think I will switch to Valvoline VR1 next oil change - to see if it holds up better than the Mobil 1, and becasue it it more readily available than Amsoil and Redline.
Final note, don't use the synthetic blends. You don't know if it's 1% synthetic or 99% or somewhere between. If you want to go with conventional, I think Valvoline VR1 is the only conventional oil (that I know of off hand) with elevated ZDDP levels that our cars need.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
The key is themal integrity and ZDDP. There are only a handful of oils that have both of these. Mobil1 15w-50, Redline 20w-50, Valvoline VR1 (synthetic or conventional) 20w-50, Amsoil 20w-50, and Brad Penn 20w-50 . I think I will switch to Valvoline VR1 next oil change - to see if it holds up better than the Mobil 1, and becasue it it more readily available than Amsoil and Redline.
Final note, don't use the synthetic blends. You don't know if it's 1% synthetic or 99% or somewhere between. If you want to go with conventional, I think Valvoline VR1 is the only conventional oil (that I know of off hand) with elevated ZDDP levels that our cars need.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
06-14-2010, 12:36 PM
#9
lost oil pressure?
Andrew, would you please explain the loss of oil pressure? This is my first Porsche but i have had many hi pro cars in the past, have never lost oil pressure as you state it.
Thanks Ray
Thanks RayKidding aside, I've not had good experience with Royal Purple. On a hot day I lost significant oil pressure. It was scary to see 3 bar at 4k RPM. Mobil 1 (15w-50) has also had similar breakdown, but not nearly as sever. Still kept slightly above the 1 bar per 1k RPM standard.
The key is themal integrity and ZDDP. There are only a handful of oils that have both of these. Mobil1 15w-50, Redline 20w-50, Valvoline VR1 (synthetic or conventional) 20w-50, Amsoil 20w-50, and Brad Penn 20w-50 . I think I will switch to Valvoline VR1 next oil change - to see if it holds up better than the Mobil 1, and becasue it it more readily available than Amsoil and Redline.
Final note, don't use the synthetic blends. You don't know if it's 1% synthetic or 99% or somewhere between. If you want to go with conventional, I think Valvoline VR1 is the only conventional oil (that I know of off hand) with elevated ZDDP levels that our cars need.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
The key is themal integrity and ZDDP. There are only a handful of oils that have both of these. Mobil1 15w-50, Redline 20w-50, Valvoline VR1 (synthetic or conventional) 20w-50, Amsoil 20w-50, and Brad Penn 20w-50 . I think I will switch to Valvoline VR1 next oil change - to see if it holds up better than the Mobil 1, and becasue it it more readily available than Amsoil and Redline.
Final note, don't use the synthetic blends. You don't know if it's 1% synthetic or 99% or somewhere between. If you want to go with conventional, I think Valvoline VR1 is the only conventional oil (that I know of off hand) with elevated ZDDP levels that our cars need.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
06-14-2010, 12:39 PM
#10
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Final note, don't use the synthetic blends. You don't know if it's 1% synthetic or 99% or somewhere between. If you want to go with conventional, I think Valvoline VR1 is the only conventional oil (that I know of off hand) with elevated ZDDP levels that our cars need.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
[edit:] Just noticed Brad Penn is a blend. Don't have any experience with it, but I think Hacker is using it in his car.
06-14-2010, 01:01 PM
#12
Supercharged
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If it's bleeding, it probably needs new gaskets. It's true that the synthetic oil molecules are more uniform in size and as such have a tendency to seep through small passages that conventional oil may tend to plug up, but the real fix is to replace the seals of the "bleeding" parts.
