Porsche announces its own oil for air cooled cars- restarting the oil wars
#31
Drifting
(For those with a technical bent who are curious, we found that 15w-40 oils made significantly more power on the dyno compared to heavier viscosities such as 15w-50 & 20w-50, in back-to-back testing. That said, certain environments call for the thicker stuff when outside air temps are over 100 deg F and/or an engine has a lot of miles on it where engine clearances are wider.)
EDIT: I should also add, that I'm looking for something "off the shelf", if possible.
#33
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#35
Drifting
^^^^Yeah, I take those comments with lots of seasoning. And to remove any ambiguity, please be more specific; what brand!? If I wasn't clear, I'm on Mobil 1 V-Twin 20W-50, and looking for something thiner yet safe and compatible for these engines.
Last edited by sand_man; 02-24-2015 at 07:50 PM.
#37
I'm ok w/ M1 15w-50 but not 0w-40
i'd think about 4t if it was available w/o jumping through hoops
The potential issue w/ 'Racing' oil is the lack of detergents and stabilizers that prolong oil change intervals.
#38
rob
#40
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#42
I live in the Netherlands and for my 993 I changed to Porsche classic oil 10W60. I noticed that the oil pressure when warm is slightly higher (as it is 60), cold start is not a problem (10 is slightly higher than 0 and I'm not using it when it is below 5 degrees)
Further more as already mentioned the pressure when warm is higher which means the flow is lower (viscosity). However the amount of heat to be dissipated has to be transmitted by less flow. From my point of view this is the reason I noticed slightly higher oil temperatures (delta T).
I may be tempted to opt for 5W 40 (motul) , 0W50 or maybe 15W50
Further more as already mentioned the pressure when warm is higher which means the flow is lower (viscosity). However the amount of heat to be dissipated has to be transmitted by less flow. From my point of view this is the reason I noticed slightly higher oil temperatures (delta T).
I may be tempted to opt for 5W 40 (motul) , 0W50 or maybe 15W50
#43
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I run Motul 15-50, 300 V oil.
I like to have Porsche explain to me how there new oil is better than what I'm using.
My contact at the dealer did not know who is making this oil for Porsche
I like to have Porsche explain to me how there new oil is better than what I'm using.
My contact at the dealer did not know who is making this oil for Porsche
#45
Drifting
Castrol Power RS Racing 4T Motorcycle Oil - Full Syn avail in 5W40, 10W40 and 10W50 all sitting at 1200 ppm zddp wise.
Almost 100% sure it is avail at Walmart in the US along with their version of V Twin 20W50 full syn.